CVE-2026-78156Open5GS S6a Authentication-Information-Request hss-s6a-path.c hss_ogs_diam_s6a_air_cb heap-based overflow
Updated under an hour ago ()
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It affects n/a Open5GS. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. The attack may be performed from remote. The name of the patch is a9c82ee0b590d76a581b0580cb46b598984e2392. A patch should be applied to remediate this issue.
- CVSS
- 7.4 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-122, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 26, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
n/a Open5GS open5gs:open5gs | 2.8.0 | CNA record |
References
- https://vuldb.com/vuln/394539vdb-entry, technical-description
- https://vuldb.com/vuln/394539/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-78156third-party-advisory
- https://vuldb.com/submit/882951third-party-advisory
- https://github.com/open5gs/open5gs/issues/4661issue-tracking
- https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392patch
- https://github.com/open5gs/open5gs/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.