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CVE-2026-116543 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Open5GS 1.3.0 through 2.8.0 contains a heap out-of-bounds write vulnerability in parse_multipart() that allows unauthenticated attackers to corrupt memory by supplying an empty multipart boundary. Attackers can send a single crafted multipart/related request to the SBI interface of any network function, overflowing the lookbehind buffer and crashing it.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:7.1 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g	CISA-ADP	AdvisoryExploitRemedyVendor
https://github.com/open5gs/open5gs	[email protected]	Vendor
https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/contrib/multipart_parser.c#L260	[email protected]	Source CodeVendor
https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/message.c#L3372	[email protected]	Source CodeVendor
https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df	[email protected]	Source CodeVendor
https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g	[email protected]	AdvisoryExploitRemedyVendor
https://www.vulncheck.com/advisories/open5gs-1.3.0-through-2.8.0-heap-out-of-bounds-write-via-sbi-multipart-parser	[email protected]	AdvisoryBundleRemedy

see all 7 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
Open5GS	<= 2.8.0 (semver)
CPE cpe:2.3:a:open5gs:open5gs:::::::: Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 2, 2026	CVE Modified	CISA-ADP
Oct 26, 2026	New CVE Received	[email protected]