CVE-2026-33515

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.05% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 64.2% of scored records. A rank, not a probability.

NVD base score

6.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-26 00:13Z7 MO AGO

Last updated

2026-03-26 14:19Z7 MO AGO

Reserved

2026-03-20

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N

Weaknesses

• CWE-125Out-of-bounds ReadBase
• CWE-1289Improper Validation of Unsafe Equivalence in InputBase

Data version

5.2

Document digest

7a22622f3bab37f6ea3f3fc9532e8853e05d1049b7e10a10957d69578ce24cf0

• github.comhttps://github.com/squid-cache/squid/security/advisories/GHSA-84p4-hcx7-jj7cx_refsource_CONFIRM
• github.comhttps://github.com/squid-cache/squid/pull/2220x_refsource_MISC
• github.comhttps://github.com/squid-cache/squid/pull/2220#discussion_r2727683637x_refsource_MISC
• github.comhttps://github.com/squid-cache/squid/commit/8138e909d2058d4401e0ad49b583afaec912b165x_refsource_MISC
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/03/25/4