CVE-2025-13878

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

9.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 95.3% 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 2026-09-01.

Red Hat severity

Important. 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

2026-01-21 14:43Z9 MO AGO

Last updated

2026-09-01 12:04Z1 MO AGO

Reserved

2025-12-02

Assigning CNA

isc

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-617Reachable AssertionBase
• CWE-1286Improper Validation of Syntactic Correctness of InputBase

Data version

5.2

Document digest

780f5fbfffc0c24dadb029435ef984b52bbf35e5d3d72b20e4b80988e5270457

• kb.isc.orgCVE-2025-13878https://kb.isc.org/docs/cve-2025-13878vendor-advisory
• downloads.isc.orghttps://downloads.isc.org/isc/bind9/9.18.44patch
• downloads.isc.orghttps://downloads.isc.org/isc/bind9/9.20.18patch
• downloads.isc.orghttps://downloads.isc.org/isc/bind9/9.21.17patch
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/01/21/3
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-13878vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2431600https://bugzilla.redhat.com/show_bug.cgi?id=2431600issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-13878.jsonx_sadp-csaf-vex
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:6935vendor-advisoryx_refsource_REDHAT