CVE-2026-8376

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

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 36.7% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-07-23.

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

2026-05-25 23:53Z3 MO AGO

Last updated

2026-05-27 18:04Z3 MO AGO

Reserved

2026-05-12

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

High (CVSS 7.3)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weaknesses

• CWE-680Integer Overflow to Buffer OverflowCompound
• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

22185ea4de4fa0c89028daf371e2fdfb84ff5df9d76f1215267a411d11d996d9

• github.comhttps://github.com/Perl/perl5/commit/5e7f119eb2bb1181be908701f22bf7068e722f1c.patchpatch
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/05/26/1