UpHeron
All vulnerabilities

Servers and applications

CVE-2019-12527

An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication with HttpHeader::getAuth, Squid uses a global buffer to store the decoded data. Squid does not check that the decoded length isn't greater than the buffer, leading to a heap-based buffer overflow with user controlled data.

Severity
High 8.8
Published
11 Jul 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
50% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
SquidServers and applications · cpe:a:squid-cache:squid
  • From 4.0.23 up to 4.7

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-12527
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-12527