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CVE-2026-6296

chromium-browser: Heap buffer overflow in ANGLE

Heap buffer overflow in ANGLE in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
Vendors
Apple Google Linux and 1 more
Products
CVE-2026-40396

varnish: Varnish Cache: Denial of Service via workspace overflow during HTTP/1 pipelining

Varnish Cache 9 before 9.0.1 allows a "workspace overflow" denial of service (daemon panic) after timeout_linger. A malicious client could send an HTTP/1 request, wait long enough until the session releases its worker thread (timeout_linger) and resume traffic before the session is closed (timeout_idle) sending more than one request at once to trigger a pipelining operation between requests. This vulnerability affecting Varnish Cache 9.0.0 emerged from a port of the Varnish Enterprise non-blocking architecture for HTTP/2. New code was needed to adapt to a more recent workspace API that formalizes the pipelining operation. In addition to the workspace change on the Varnish Cache side, other differences created merge conflicts, like partial support for trailers in Varnish Enterprise. The conflict resolution missed one code path configuring pipelining to perform a complete workspace rollback, losing the guarantee that prefetched data would fit inside workspace_client during the transition from one request to the next. This can result in a workspace overflow, triggering a panic and crashing the Varnish server.

CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed
CVE-2026-40394

Varnish Cache: Varnish Enterprise: Varnish Cache and Varnish Enterprise: Denial of Service via workspace overflow

Varnish Cache 9 before 9.0.1 and Varnish Enterprise before 6.0.16r11 allows a "workspace overflow" denial of service (daemon panic) for certain amounts of prefetched data. The setup of an HTTP/2 session starts with a speculative HTTP/1 transport, and upon upgrading to h2 the HTTP/1 request is repurposed as stream zero. During the upgrade, a buffer allocation is made to reserve space to send frames to the client. This allocation would split the original workspace, and depending on the amount of prefetched data, the next fetch could perform a pipelining operation that would run out of workspace.

CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed
CVE-2018-25244

Eco Search 1.0.2.0 Denial of Service

Eco Search 1.0.2.0 contains a denial of service vulnerability that allows local attackers to crash the application by submitting an excessively long string to the search functionality. Attackers can paste a buffer of 950 or more characters into the search bar and trigger a crash by initiating a search operation.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-28686

ImageMagick has a write heap-buffer-overflow in PCL encoder via undersized output buffer

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, A heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized output buffer allocation. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2002-1347

security flaw

Multiple buffer overflows in Cyrus SASL library 2.1.9 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via (1) long inputs during user name canonicalization, (2) characters that need to be escaped during LDAP authentication using saslauthd, or (3) an off-by-one error in the log writer, which does not allocate space for the null character that terminates a string.

CVSS 3.1 · 9.8 Critical EPSS 7.1% KEV · Not listed
Products
CVE-2005-0490

security flaw

Multiple stack-based buffer overflows in libcURL and cURL 7.12.1, and possibly other versions, allow remote malicious web servers to execute arbitrary code via base64 encoded replies that exceed the intended buffer lengths when decoded, which is not properly handled by (1) the Curl_input_ntlm function in http_ntlm.c during NTLM authentication or (2) the Curl_krb_kauth and krb4_auth functions in krb4.c during Kerberos authentication.

CVSS 3.1 · 8.8 High EPSS 5.7% KEV · Not listed
Vendors
CVE-2004-0747

security flaw

Buffer overflow in Apache 2.0.50 and earlier allows local users to gain apache privileges via a .htaccess file that causes the overflow during expansion of environment variables.

CVSS 3.1 · 7.8 High EPSS 1.6% KEV · Not listed
Vendors
CVE-2001-0248

Buffer overflow in FTP server in HPUX 11 allows remote attackers to execute arbitrary commands by creating a long pathname and calling the STAT command, which uses glob to generate long strings.

CVSS 3.1 · 9.8 Critical EPSS 11.2% KEV · Not listed
Vendors
Products
CVE-2001-0249

Heap overflow in FTP daemon in Solaris 8 allows remote attackers to execute arbitrary commands by creating a long pathname and calling the LIST command, which uses glob to generate long strings.

CVSS 3.1 · 9.8 Critical EPSS 19.7% KEV · Not listed
Vendors
Products
CVE-2001-0334

FTP service in IIS 5.0 and earlier allows remote attackers to cause a denial of service via a wildcard sequence that generates a long string when it is expanded.

CVSS 3.1 · 7.5 High EPSS 14.7% KEV · Not listed
Vendors
CVE-2002-0184

security flaw

Sudo before 1.6.6 contains an off-by-one error that can result in a heap-based buffer overflow that may allow local users to gain root privileges via special characters in the -p (prompt) argument, which are not properly expanded.

CVSS 3.1 · 7.8 High EPSS 1.2% KEV · Not listed
Products
CVE-2004-0434

k5admind (kadmind) for Heimdal allows remote attackers to execute arbitrary code via a Kerberos 4 compatibility administration request whose framing length is less than 2, which leads to a heap-based buffer overflow.

CVSS 3.1 · 9.8 Critical EPSS 7.2% KEV · Not listed
CVE-2003-0899

Buffer overflow in defang in libhttpd.c for thttpd 2.21 to 2.23b1 allows remote attackers to execute arbitrary code via requests that contain '<' or '>' characters, which trigger the overflow when the characters are expanded to "&lt;" and "&gt;" sequences.

CVSS 3.1 · 9.8 Critical EPSS 22.2% KEV · Not listed
Vendors
Products
CVE-2004-0940

httpd mod_include SSI overflow

Buffer overflow in the get_tag function in mod_include for Apache 1.3.x to 1.3.32 allows local users who can create SSI documents to execute arbitrary code as the apache user via SSI (XSSI) documents that trigger a length calculation error.

CVSS 3.1 · 7.8 High EPSS 4.8% KEV · Not listed
Vendors
Apache Hp Openpkg and 4 more
Products
CVE-2005-2103

security flaw

Buffer overflow in the AIM and ICQ module in Gaim before 1.5.0 allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via an away message with a large number of AIM substitution strings, such as %t or %n.

CVSS 3.1 · 9.8 Critical EPSS 16.1% KEV · Not listed
CVE-2005-3120

CAN-2005-3120 lynx buffer overflow

Stack-based buffer overflow in the HTrjis function in Lynx 2.8.6 and earlier allows remote NNTP servers to execute arbitrary code via certain article headers containing Asian characters that cause Lynx to add extra escape (ESC) characters.

CVSS 3.1 · 9.8 Critical EPSS 23.3% KEV · Not listed
CVE-2018-14618

curl: NTLM password overflow via integer overflow

curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is almost identical to CVE-2017-8816.)

CVSS 3.0 · 7.5 High EPSS 10.7% KEV · Not listed
Vendors
Canonical Debian Haxx and 1 more
Products
CVE-2026-34743

XZ Utils: Buffer overflow in lzma_index_append()

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.

CVSS 4.0 · 1.7 Low EPSS < 1% KEV · Not listed
Products
Xz Xz