CVE-2022-23852
9.8
CRITICAL · CVSS 3.1 · EPSS 4.6% (pctl 91)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.56% — more likely to be exploited than 91% of all CVEs |
| Weakness | CWE-190 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-01-24 |
| Last modified | 2026-06-17 |
Affected (7)
| Vendor | Product |
|---|---|
| debian | debian linux |
| libexpat project | libexpat |
| netapp | clustered data ontap |
| netapp | oncommand workflow automation |
| oracle | communications metasolv solution |
| siemens | sinema remote connect server |
| tenable | nessus |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://github.com/libexpat/libexpat/pull/550
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
- https://security.gentoo.org/glsa/202209-24
- https://security.netapp.com/advisory/ntap-20220217-0001/
- https://www.debian.org/security/2022/dsa-5073
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.tenable.com/security/tns-2022-05
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://github.com/libexpat/libexpat/pull/550
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
- https://security.gentoo.org/glsa/202209-24
- https://security.netapp.com/advisory/ntap-20220217-0001/
- https://www.debian.org/security/2022/dsa-5073
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.tenable.com/security/tns-2022-05
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