CVE-2025-54574
NoneCVSS
—
EPSS
24.0%
Published
Aug 1, 2025
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Debian:11 | squid | 0 | No fix |
| Debian:12 | squid | 0 | No fix |
| Debian:13 | squid | 0 | 6.5-1 |
| Debian:14 | squid | 0 | 6.5-1 |
Related vulnerabilities
- CVE-2024-45802 Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Also affects squid
- CVE-2024-37894 Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Also affects squid
- CVE-2024-25111 Squid is a web proxy cache. Also affects squid
- CVE-2016-4554 mime_header.cc in Squid before 3.5.18 allows remote attackers to bypass intended… Also affects squid
- CVE-2016-4051 Buffer overflow in cachemgr.cgi in Squid 2.x, 3.x before 3.5.17, and 4.x before 4.0.9… Also affects squid
- CVE-2016-2390 The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x… Also affects squid
- CVE-2016-3948 Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which… Also affects squid
- CVE-2016-3947 Heap-based buffer overflow in the Icmp6::Recv function in icmp/Icmp6.cc in the pinger… Also affects squid