A weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1. The impacted element is the function shm_malloc of the file src/modules/cdp/receiver.c of the component CDP Diameter Receiver. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 6.0.8 is sufficient to resolve this issue. This patch is called 38711a3e788de0130d48cb485578c482b57d9351/4f62235b6f477b649c5cc18b0c81b4e26c949b98/4f62235b6f477b649c5cc18b0c81b4e26c949b98. You should upgrade the affected component.
CVE-2026-93962
HIGHPre-NVD 8.38.3Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
8.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.3
- EG Score
- 8.3(low)
- EG Risk
- 42(Track)EG Risk 42/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity83% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
September 20, 2026
Last Modified
September 20, 2026
Advisory Details (5)
Auto-updated Sep 20, 2026Patch available. Sources: github_release, github_pr, github_commit.
generic
GitHub - kamailio/kamailio: Kamailio - The Open Source SIP Server for large VoIP and real-time communication platforms, focusing on flexibility, security and scalability · GitHub
https://github.com/kamailio/kamailio/github_release Patch Available
6.0.8
Patch available: kamailio/kamailio 6.0.8
https://github.com/kamailio/kamailio/releases/tag/6.0.8github_commit
commit 38711a3e788d (kamailio/kamailio)
Fix landed in kamailio/kamailio commit 38711a3e788d — awaiting tagged release
https://github.com/kamailio/kamailio/commit/38711a3e788de0130d48cb485578c482b57d9351github_pr
cdp: reject undersized Diameter messages
Fix merged in kamailio/kamailio PR #4877 on 2026-08-21 — awaiting tagged release
https://github.com/kamailio/kamailio/pull/4877generic
CDP heap buffer overflow via Diameter message-length < 20 (pre-auth, all interfaces) · Issue #4876 · kamailio/kamailio · GitHub
https://github.com/kamailio/kamailio/issues/4876Vendor Advisories for CVE-2026-93962(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 4× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-20 05:26 UTCEG score recompute
- 2026-09-20 05:26 UTCNVD updateCVSS v4 → 5.5
- 2026-09-20 05:11 UTCEG score recompute
- 2026-09-20 05:10 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-93962?
CVE-2026-93962 is a high vulnerability published on September 20, 2026. A weakness has been identified in Kamailio up to 5.8.8/6.0.7/6.1.4/6.2.0-dev1. The impacted element is the function shm_malloc of the file src/modules/cdp/receiver.c of the component CDP Diameter Receiver. Executing a manipulation can lead to heap-based buffer overflow. It is possible to launch the…
When was CVE-2026-93962 disclosed?
CVE-2026-93962 was first published in the National Vulnerability Database on September 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-93962?
CVE-2026-93962 has a CVSS v3 base score of 8.3 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-93962?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93962, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-93962
Is Your Infrastructure Affected by CVE-2026-93962?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.