CVE-2025-43960 json
Adminer PHP Object Injection issue leads to Denial of Service
published 2025-08-25 14 mo ago modified 2026-06-17 4 mo ago also GHSA-mqh4-2mm8-g7w9 , EUVD-2025-25694
- cvss
- 8.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 14 mo ago
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/far00t01/CVE-2025-43960 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
| CNA | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
| GitHub | 3.1 | 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | vrana/adminer | <=4.8.1 |
no fix listed |
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/far00t01/CVE-2025-43960
web, exploit, third-party-advisory
-
github.com
/vrana/adminer/compare/v4.8.1...v4.8.2
release-notes
-
adminer.org
product
-
github.com
/Seldaek/monolog
product
-
nvd.nist.gov
/vuln/detail/CVE-2025-43960
advisory
-
github.com
/vrana/adminer
package
Sources
- CVE List CVE-2025-43960
- GitHub Advisory GHSA-mqh4-2mm8-g7w9
- NVD CVE-2025-43960
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