CVE catalog

CVE-2025-43960

adminer: CVE-2025-43960

[CVE catalog]

Severity
Low
Published
Source
[NVD] · [CVE record]
EPSS
0.73% · Oct 25, 2026

Adminer 4.8.1, when using Monolog for logging, allows a Denial of Service (memory consumption) via a crafted serialized payload (e.g., using s:1000000000), leading to a PHP Object Injection issue. Remote, unauthenticated attackers can trigger this by sending a malicious serialized object, which forces excessive memory usage, rendering Adminer’s interface unresponsive and causing a server-level DoS. While the server may recover after several minutes, multiple simultaneous requests can cause a complete crash requiring manual intervention.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianadminersid6.1.2-1vulnerable
Debianadminerforky6.1.0-1vulnerable
Debianadminertrixie5.2.1+dfsg-1vulnerable
Debianadminerbookworm4.8.1-1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianadminersourcesid(unfixed)unimportantNot reportedNot reported
Debianadminersourceforky(unfixed)unimportantNot reportedNot reported
Debianadminersourcetrixie(unfixed)unimportantNot reportedNot reported
Debianadminersourcebookworm(unfixed)unimportantNot reportedNot reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [adminer]Affected
    Details (2)
    • 4.8.1-1 · all · bookworm

      Affected

      dsa · adminer · debian · bookworm; dsa · adminer · debian · 12

    • 4.8.1-1 · all · bookworm

      Affected

      dsa · adminer · debian · bookworm; dsa · adminer · debian · 12

[Debian 13 (Trixie)]

  • [adminer]Affected
    Details (2)
    • 5.2.1+dfsg-1 · all · trixie

      Affected

      dsa · adminer · debian · 13

    • 5.2.1+dfsg-1 · all · trixie

      Affected

      dsa · adminer · debian · 13

Observed:

References