CVE-2025-13878 | Malformed BRID/HHIT records can cause named to terminate unexpectedly

Malformed BRID/HHIT records can cause `named` to terminate unexpectedly. This issue affects BIND 9 versions 9.18.40 through 9.18.43, 9.20.13 through 9.20.17, 9.21.12 through 9.21.16, 9.18.40-S1 through 9.18.43-S1, and 9.20.13-S1 through 9.20.17-S1.

Published: 2026-01-21 Last update: 2026-07-14 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-13878 is rated Moderate Risk (63.6/100): CVSS High severity, with high exploitation likelihood (EPSS 8.22%, 94th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-13878

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-30 7.57% 8.22% +0.65%
2 2026-06-19 8.01% 7.57% -0.44%
3 2026-06-15 — 8.01% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-13878

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Weakness enumeration for CVE-2025-13878

GitHub Security Advisory for CVE-2025-13878

GHSA-p5qx-fwf5-q388 · Severity: high — Malformed BRID/HHIT records can cause `named` to terminate unexpectedly. This issue affects BIND...

OS Trackers for CVE-2025-13878

vendor priority summary link
alpine — CVE-2025-13878: 1 source package rows (bind); 6 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 6, open 0. https://security.alpinelinux.org/vuln/CVE-2025-13878
debian unimportant CVE-2025-13878 unimportant priority: Debian including 1 source packages (bind9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-13878
redhat high — https://access.redhat.com/security/cve/CVE-2025-13878
suse high — https://www.suse.com/security/cve/CVE-2025-13878/
ubuntu medium CVE-2025-13878 medium priority: Ubuntu including 3 source packages (bind9, bind9-libs, isc-dhcp), 21 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): not-affected 16, DNE 2, needs-triage 2, released 1. https://ubuntu.com/security/CVE-2025-13878

Affected software / configurations for CVE-2025-13878

Vendor Product Version Raw CPE
isc bind >= 9.18.40, <= 9.18.43 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind >= 9.20.13, <= 9.20.17 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind >= 9.21.12, <= 9.21.16 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind >= 9.18.40-S1, <= 9.18.43-S1 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
isc bind >= 9.20.13-S1, <= 9.20.17-S1 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*

References for CVE-2025-13878

cvelogic Threat Intelligence