CVE-2026-12844

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

0.40% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 32.9% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:N/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-06-25.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-06-25 15:26Z2 MO AGO

Last updated

2026-06-25 19:35Z2 MO AGO

Reserved

2026-06-21

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-122Heap-based Buffer OverflowVariant
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

2bbfbd969d15561abe5ff4f21f8bb607079786319915de5174863349bd35be7f

• github.comhttps://github.com/houseabsolute/List-SomeUtils-XS/commit/22549f78669b780d6aa338a2d2e49a3dedfffaa6.patchpatch
• metacpan.orghttps://metacpan.org/release/DROLSKY/List-SomeUtils-XS-0.59/changesrelease-notes
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/06/25/11