An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the IMS P-CSCF registration handling components
CVE-2026-52022
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(high)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: 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 computedSeverity75% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 45%
- KEV
- Not listed
Published
September 1, 2026
Last Modified
September 4, 2026
Advisory Details (2)
Auto-updated Sep 2, 2026commit 91c5ca751799 (kamailio/kamailio)
Patch available: kamailio/kamailio 6.0.2 (contains commit 91c5ca751799)
https://github.com/kamailio/kamailio/commit/91c5ca751799db4f25a28a495350cc97f7c2f390P-CSCF crashes with SIGSEGV in REGISTER_reply/ipsec_create path during IMS registration · Issue #4670 · kamailio/kamailio · GitHub
https://github.com/kamailio/kamailio/issues/4670Vendor Advisories for CVE-2026-52022(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(3 across 3 ecosystems)
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| kamailio | 5.6.3-2 ... 6.1.4-1 (28 versions) | — | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| kamailio | 6.0.1-1 ... 6.1.4-1 (16 versions) | — | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| kamailio | 6.0.1-1 ... 6.1.3-2 (14 versions) | 6.1.4-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 24× in last 7d / 90× 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.
- 2026-09-25 03:56 UTCGHSA enrichment
- 2026-09-24 16:23 UTCEG score recompute
- 2026-09-24 16:23 UTCGHSA enrichment
- 2026-09-24 04:50 UTCEG score recompute
- 2026-09-24 04:50 UTCGHSA enrichment
- 2026-09-23 17:53 UTCEPSS rescore
- 2026-09-23 17:17 UTCGHSA enrichment
- 2026-09-23 05:42 UTCGHSA enrichment
- 2026-09-22 18:10 UTCEG score recompute
- 2026-09-22 18:10 UTCGHSA enrichment
- 2026-09-22 05:27 UTCEG score recompute
- 2026-09-22 05:27 UTCGHSA enrichment
- 2026-09-21 17:54 UTCGHSA enrichment
- 2026-09-21 06:21 UTCEG score recompute
- 2026-09-21 06:21 UTCGHSA enrichment
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 18:48 UTCGHSA enrichment
- 2026-09-20 07:15 UTCGHSA enrichment
- 2026-09-19 19:01 UTCEG score recompute
- 2026-09-19 19:01 UTCGHSA enrichment
- 2026-09-19 07:28 UTCGHSA enrichment
- 2026-09-18 19:56 UTCEG score recompute
- 2026-09-18 19:56 UTCGHSA enrichment
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 08:23 UTCGHSA enrichment
Show 65 moreShow fewer
- 2026-09-17 20:46 UTCEG score recompute
- 2026-09-17 20:46 UTCGHSA enrichment
- 2026-09-17 06:20 UTCGHSA enrichment
- 2026-09-16 18:43 UTCEG score recompute
- 2026-09-16 18:43 UTCGHSA enrichment
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-16 06:18 UTCEG score recompute
- 2026-09-16 06:18 UTCGHSA enrichment
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 18:46 UTCGHSA enrichment
- 2026-09-15 07:13 UTCEG score recompute
- 2026-09-15 07:13 UTCGHSA enrichment
- 2026-09-14 19:40 UTCGHSA enrichment
- 2026-09-14 08:08 UTCGHSA enrichment
- 2026-09-13 20:35 UTCEG score recompute
- 2026-09-13 20:35 UTCGHSA enrichment
- 2026-09-13 16:47 UTCEPSS rescore
- 2026-09-13 09:02 UTCGHSA enrichment
- 2026-09-12 21:30 UTCEG score recompute
- 2026-09-12 21:30 UTCGHSA enrichment
- 2026-09-12 09:56 UTCGHSA enrichment
- 2026-09-11 22:23 UTCEG score recompute
- 2026-09-11 22:23 UTCGHSA enrichment
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 10:49 UTCEG score recompute
- 2026-09-11 10:49 UTCGHSA enrichment
- 2026-09-10 23:12 UTCGHSA enrichment
- 2026-09-10 11:39 UTCEG score recompute
- 2026-09-10 11:39 UTCGHSA enrichment
- 2026-09-10 09:35 UTCEPSS rescore
- 2026-09-09 23:41 UTCGHSA enrichment
- 2026-09-09 11:00 UTCGHSA enrichment
- 2026-09-08 23:28 UTCEG score recompute
- 2026-09-08 23:28 UTCGHSA enrichment
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-08 05:30 UTCGHSA enrichment
- 2026-09-07 17:53 UTCEG score recompute
- 2026-09-07 17:53 UTCGHSA enrichment
- 2026-09-07 16:01 UTCEPSS rescore
- 2026-09-07 06:19 UTCGHSA enrichment
- 2026-09-06 18:43 UTCEG score recompute
- 2026-09-06 18:43 UTCGHSA enrichment
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-06 07:10 UTCGHSA enrichment
- 2026-09-05 19:37 UTCEG score recompute
- 2026-09-05 19:37 UTCGHSA enrichment
- 2026-09-05 08:05 UTCGHSA enrichment
- 2026-09-04 20:31 UTCGHSA enrichment
- 2026-09-04 17:29 UTCEG score recompute
- 2026-09-04 17:29 UTCGHSA enrichment
- 2026-09-04 05:56 UTCEG score recompute
- 2026-09-04 05:56 UTCGHSA enrichment
- 2026-09-04 05:06 UTCEPSS rescore
- 2026-09-03 18:20 UTCGHSA enrichment
- 2026-09-03 17:45 UTCGHSA enrichment
- 2026-09-03 06:09 UTCGHSA enrichment
- 2026-09-02 18:37 UTCEG score recompute
- 2026-09-02 18:37 UTCGHSA enrichment
- 2026-09-02 17:59 UTCEG score recompute▲ 7.50
- 2026-09-02 17:59 UTCGHSA enrichment
- 2026-09-02 17:56 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
- 2026-09-02 14:12 UTCEPSS rescore
- 2026-09-01 18:22 UTCNVD update
- 2026-09-01 17:22 UTCEG score recompute
- 2026-09-01 17:22 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Same product
10 shownDebian:12:kamailio
Frequently asked(5)
What is CVE-2026-52022?
When was CVE-2026-52022 disclosed?
Is CVE-2026-52022 actively exploited?
What is the CVSS score of CVE-2026-52022?
How do I remediate CVE-2026-52022?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-52022
Is Your Infrastructure Affected by CVE-2026-52022?
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