CVE-2021-28116
Low
Published: 09 March 2021
Published
09 March 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score
0.1051
93.4th percentile
Risk Priority
14
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-28116 is a low-severity Out-of-bounds Read (CWE-125) vulnerability in Squid-Cache Squid. Its CVSS base score is 3.7 (Low).
Operationally, ranked in the top 6.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-14817
Vulnerability details
Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
squid-cache
squid
≤ 4.14 · 5.0 — 5.0.5
fedoraproject
fedora
33, 34
debian
debian linux
10.0, 11.0
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.