CVE-2025-6491
5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In PHP versions:8.1.* before 8.1.33, 8.2.* before 8.2.29, 8.3.* before 8.3.23, 8.4.* before 8.4.10 when parsing XML data in SOAP extensions, overly large (>2Gb) XML namespace prefix may lead to null pointer dereference. This may lead to crashes and affect the availability of the target server.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PHP Group | PHP | 8.1.* < 8.1.33 | affected |
| PHP Group | PHP | 8.2.* < 8.2.29 | affected |
| PHP Group | PHP | 8.3.* < 8.3.23 | affected |
| PHP Group | PHP | 8.4.* < 8.4.10 | affected |
Weaknesses
- CWE-476: CWE-476 NULL Pointer Dereference
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
Additional References
CVE Program Container
Additional References
- https://lists.debian.org/debian-lts-announce/2025/07/msg00017.html
- http://www.openwall.com/lists/oss-security/2025/07/11/4
References
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.