CVE-2026-5037 | THREATINT

Description

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.

PUBLISHED Reserved 2026-03-27 | Published 2026-03-29 | Updated 2026-04-01 | Assigner VulDB

MEDIUM: 4.8CVSS: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

LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

Stack-based Buffer Overflow

Memory Corruption

Timeline

2026-03-27:	Advisory disclosed
2026-03-27:	VulDB entry created
2026-03-27:	VulDB entry last update

Credits

MTHG (VulDB User) reporter

References

vuldb.com/vuln/353963 (VDB-353963 | mxml mxmlIndexNew mxml-index.c index_sort stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/353963/cti (VDB-353963 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/778638 (Submit #778638 | michaelrsweet mxml 4.0.4 Heap-based Buffer Overflow) third-party-advisory

github.com/michaelrsweet/mxml/issues/350 issue-tracking

github.com/user-attachments/files/25934383/1.xml exploit

github.com/...ommit/6e27354466092a1ac65601e01ce6708710bb9fa5 patch

cve.org (CVE-2026-5037)

nvd.nist.gov (CVE-2026-5037)

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