Squid's URN Handling can lead to Buffer Overflow
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| squid-cache | squid | affected |
|
No data.
| Vendor | Product | Versions |
|---|---|---|
| Squid-cache | Squid | — |
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4312-1 | squid security update |
Debian DSA |
DSA-5982-1 | squid security update |
EUVD |
EUVD-2025-23392 | Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions. |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 22.1% (22.133% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-787 | |
| CPEs | cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Squid-cache
Squid-cache squid |
|
| Vendors & Products |
Squid-cache
Squid-cache squid |
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions. | |
| Title | Squid's URN Handling can lead to Buffer Overflow | |
| Weaknesses | CWE-122 | |
| References |
| |
| Metrics |
cvssV3_1
|