CVE-2026-5037
mxml mxmlIndexNew mxml-index.c index_sort stack-based overflow
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS 4.8EPSS 0.1%KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
29 Mar 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
A vulnerability was determined in mxml up to 4.0.4. This issue affects the function index_sort of the file mxml-index.c of the component mxmlIndexNew. Executing a manipulation of the argument tempr can lead to stack-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called 6e27354466092a1ac65601e01ce6708710bb9fa5. A patch should be applied to remediate this issue.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
n/a · mxmlpublic PoCs found — 1
cve_referencegithub.com/user-attachments/files/25934383/1.xmlunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/michaelrsweet/mxml/commit/6e27354466092a1ac65601e01ce6708710bb9fa5https://github.com/michaelrsweet/mxml/issues/350https://github.com/michaelrsweet/mxml/issues/350#issuecomment-4051317229https://github.com/user-attachments/files/25934383/1.xmlhttps://vuldb.com/submit/778638https://vuldb.com/vuln/353963https://vuldb.com/vuln/353963/cti