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CVE-2022-3786

X.509 Email Address Variable Length Buffer Overflow

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed a malicious certificate or for an application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address in a certificate to overflow an arbitrary number of bytes containing the `.' character (decimal 46) on the stack. This buffer overflow could result in a crash (causing a denial of service). In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects.

CVSS 3.1 · 7.5 High EPSS 92.5% KEV · Not listed
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Fedora Node.js Openssl and 1 more
CVE-2022-3602

X.509 Email Address 4-byte Buffer Overflow

A buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking. Note that this occurs after certificate chain signature verification and requires either a CA to have signed the malicious certificate or for the application to continue certificate verification despite failure to construct a path to a trusted issuer. An attacker can craft a malicious email address to overflow four attacker-controlled bytes on the stack. This buffer overflow could result in a crash (causing a denial of service) or potentially remote code execution. Many platforms implement stack overflow protections which would mitigate against the risk of remote code execution. The risk may be further mitigated based on stack layout for any given platform/compiler. Pre-announcements of CVE-2022-3602 described this issue as CRITICAL. Further analysis based on some of the mitigating factors described above have led this to be downgraded to HIGH. Users are still encouraged to upgrade to a new version as soon as possible. In a TLS client, this can be triggered by connecting to a malicious server. In a TLS server, this can be triggered if the server requests client authentication and a malicious client connects. Fixed in OpenSSL 3.0.7 (Affected 3.0.0,3.0.1,3.0.2,3.0.3,3.0.4,3.0.5,3.0.6).

CVSS 3.1 · 7.5 High EPSS 90.8% KEV · Not listed
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CVE-2026-5815

D-Link DIR-645 hedwig.cgi hedwigcgi_main stack-based overflow

A vulnerability was detected in D-Link DIR-645 1.01/1.02/1.03. Impacted is the function hedwigcgi_main of the file /cgi-bin/hedwig.cgi. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-6157

Totolink A800R app.so setAppEasyWizardConfig buffer overflow

A vulnerability was detected in Totolink A800R 4.1.2cu.5137_B20200730. This impacts the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. The manipulation of the argument apcliSsid results in buffer overflow. The attack can be executed remotely. The exploit is now public and may be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
CVE-2020-36880

Flexsense DiskBoss 'Reports and Data Directory' Buffer Overflow

Flexsense DiskBoss 7.7.14 contains a local buffer overflow vulnerability in the 'Reports and Data Directory' field that allows an attacker to execute arbitrary code on the system.

CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
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CVE-2026-5342

LibRaw TIFF/NEF decoders_libraw.cpp nikon_load_padded_packed_raw out-of-bounds

A flaw has been found in LibRaw up to 0.22.0. This affects the function LibRaw::nikon_load_padded_packed_raw of the file src/decoders/decoders_libraw.cpp of the component TIFF/NEF. Executing a manipulation of the argument load_flags/raw_width can lead to out-of-bounds read. It is possible to launch the attack remotely. The exploit has been published and may be used. Upgrading to version 0.22.1 mitigates this issue. This patch is called b8397cd45657b84e88bd1202528d1764265f185c. It is advisable to upgrade the affected component.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-5318

LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write

A weakness has been identified in LibRaw up to 0.22.0. This impacts the function HuffTable::initval of the file src/decompressors/losslessjpeg.cpp of the component JPEG DHT Parser. This manipulation of the argument bits[] causes out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.22.1 will fix this issue. Patch name: a6734e867b19d75367c05f872ac26322464e3995. It is advisable to upgrade the affected component.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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CVE-2026-4486

D-Link DIR-513 Web Service formEasySetPassword stack-based overflow

A vulnerability was found in D-Link DIR-513 1.10. This affects the function formEasySetPassword of the file /goform/formEasySetPassword of the component Web Service. The manipulation of the argument curTime results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-4534

Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow

A flaw has been found in Tenda FH451 1.0.0.9. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. This manipulation of the argument GO causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-4555

D-Link DIR-513 boa formEasySetTimezone memory corruption

A weakness has been identified in D-Link DIR-513 1.10. The impacted element is the function formEasySetTimezone of the file /goform/formEasySetTimezone of the component boa. This manipulation of the argument curTime causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
CVE-2025-43264

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6. Processing a maliciously crafted image may corrupt process memory.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-4181

D-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflow

A security flaw has been discovered in D-Link DIR-816 1.10CNB05. This affects an unknown function of the file /goform/form2RepeaterStep2.cgi of the component goahead. The manipulation of the argument key1/key2/key3/key4/pskValue results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 4.0 · 9.3 Critical EPSS 1.4% KEV · Not listed
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CVE-2026-4535

Tenda FH451 WrlclientSet stack-based overflow

A vulnerability has been found in Tenda FH451 1.0.0.9. This vulnerability affects the function WrlclientSet of the file /goform/WrlclientSet. Such manipulation of the argument GO leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-4565

Tenda AC21 SetNetControlList formSetQosBand buffer overflow

A vulnerability was detected in Tenda AC21 16.03.08.16. Impacted is the function formSetQosBand of the file /goform/SetNetControlList. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-4975

Tenda AC15 POST Request setcfm formSetCfm memory corruption

A vulnerability has been found in Tenda AC15 15.03.05.19. This affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. The manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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CVE-2026-4976

Totolink LR350 cstecgi.cgi setWiFiGuestCfg buffer overflow

A vulnerability was found in Totolink LR350 9.3.5u.6369_B20220309. This vulnerability affects the function setWiFiGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-5004

Wavlink WL-WN579X3-C UPNP firewall.cgi sub_4019FC stack-based overflow

A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This impacts the function sub_4019FC of the file /cgi-bin/firewall.cgi of the component UPNP Handler. Executing a manipulation of the argument UpnpEnabled can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-5212

D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow

A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function Webdav_Upload_File of the file /cgi-bin/webdav_mgr.cgi. The manipulation of the argument f_file leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.

CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
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Dnr-202l Dnr-322l Dnr-326 and 57 more
CVE-2026-5244

Cesanta Mongoose TLS 1.3 mongoose.c mg_tls_recv_cert heap-based overflow

A vulnerability has been found in Cesanta Mongoose up to 7.20. This affects the function mg_tls_recv_cert of the file mongoose.c of the component TLS 1.3 Handler. Such manipulation of the argument pubkey leads to heap-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 7.21 mitigates this issue. The name of the patch is 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-5245

Cesanta Mongoose mDNS Record mongoose.c handle_mdns_record stack-based overflow

A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handle_mdns_record of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A high degree of complexity is needed for the attack. The exploitability is said to be difficult. The exploit has been made public and could be used. Upgrading to version 7.21 will fix this issue. The patch is named 0d882f1b43ff2308b7486a56a9d60cd6dba8a3f1. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
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