CVE-2026-52023

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the ims_registrar_pcscf module, specifically the pcscf_save_pending/save_pending path and security-agreement parsing in sec_agree.c:parse_sec_agree()

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 computed
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 1, 2026

Last Modified

September 15, 2026

Advisory Details (2)

Auto-updated Sep 8, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 722c06b3efc5 (kamailio/kamailio)

Fix landed in kamailio/kamailio commit 722c06b3efc5 — awaiting tagged release

https://github.com/kamailio/kamailio/commit/722c06b3efc53ccb369ce812c685c7d069508187
generic

P-CSCF crash in ims_registrar_pcscf during concurrent REGISTER and de-REGISTER · Issue #4671 · kamailio/kamailio · GitHub

https://github.com/kamailio/kamailio/issues/4671

Vendor Advisories for CVE-2026-52023(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)
PackageVulnerable rangeFixed inDependents
kamailio5.6.3-2 ... 6.1.4-1 (28 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
kamailio6.0.1-1 ... 6.1.4-1 (16 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
kamailio6.0.1-1 ... 6.1.3-2 (14 versions)6.1.4-1—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 26× in last 7d / 56× 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.

  1. 2026-09-19 19:21 UTCEG score recompute
  2. 2026-09-19 19:21 UTCGHSA enrichment
  3. 2026-09-19 07:42 UTCGHSA enrichment
  4. 2026-09-18 20:03 UTCEG score recompute
  5. 2026-09-18 20:03 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 08:24 UTCGHSA enrichment
  8. 2026-09-17 20:46 UTCEG score recompute
  9. 2026-09-17 20:46 UTCGHSA enrichment
  10. 2026-09-17 06:47 UTCGHSA enrichment
  11. 2026-09-16 18:43 UTCEG score recompute
  12. 2026-09-16 18:43 UTCGHSA enrichment
  13. 2026-09-16 14:08 UTCEPSS rescore
  14. 2026-09-16 06:50 UTCEG score recompute
  15. 2026-09-16 06:50 UTCGHSA enrichment
  16. 2026-09-16 05:15 UTCEPSS rescore
  17. 2026-09-15 19:12 UTCEG score recompute
  18. 2026-09-15 19:12 UTCGHSA enrichment
  19. 2026-09-15 09:19 UTCEG score recompute
  20. 2026-09-15 09:19 UTCGHSA enrichment
  21. 2026-09-14 21:41 UTCGHSA enrichment
  22. 2026-09-14 10:03 UTCGHSA enrichment
  23. 2026-09-13 22:03 UTCEG score recompute
  24. 2026-09-13 22:03 UTCGHSA enrichment
  25. 2026-09-13 16:47 UTCEPSS rescore
Show 31 more
  1. 2026-09-13 10:25 UTCGHSA enrichment
  2. 2026-09-12 22:47 UTCEG score recompute
  3. 2026-09-12 22:47 UTCGHSA enrichment
  4. 2026-09-12 11:08 UTCGHSA enrichment
  5. 2026-09-11 23:18 UTCEG score recompute
  6. 2026-09-11 23:18 UTCGHSA enrichment
  7. 2026-09-11 14:53 UTCEPSS rescore
  8. 2026-09-11 10:56 UTCEG score recompute
  9. 2026-09-11 10:56 UTCGHSA enrichment
  10. 2026-09-10 23:18 UTCGHSA enrichment
  11. 2026-09-10 11:39 UTCEG score recompute
  12. 2026-09-10 11:39 UTCGHSA enrichment
  13. 2026-09-10 09:35 UTCEPSS rescore
  14. 2026-09-09 23:41 UTCGHSA enrichment
  15. 2026-09-09 08:29 UTCEG score recompute
  16. 2026-09-09 08:29 UTCGHSA enrichment
  17. 2026-09-08 22:01 UTCEPSS rescore
  18. 2026-09-08 20:51 UTCGHSA enrichment
  19. 2026-09-08 19:21 UTCEG score recompute▲ 7.50
  20. 2026-09-08 19:21 UTCGHSA enrichment
  21. 2026-09-08 19:19 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  22. 2026-09-07 16:01 UTCEPSS rescore
  23. 2026-09-06 19:07 UTCGHSA enrichment
  24. 2026-09-06 13:47 UTCEPSS rescore
  25. 2026-09-04 05:06 UTCEPSS rescore
  26. 2026-09-03 18:20 UTCEG score recompute
  27. 2026-09-03 18:20 UTCGHSA enrichment
  28. 2026-09-02 14:12 UTCEPSS rescore
  29. 2026-09-01 18:22 UTCNVD update
  30. 2026-09-01 17:22 UTCEG score recompute
  31. 2026-09-01 17:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-52023?
CVE-2026-52023 is a high vulnerability published on September 1, 2026. An issue in kamailio v.6.1.1 and before allows a remote attacker to cause a denial of service via the imsregistrarpcscf module, specifically the pcscfsavepending/savepending path and security-agreement parsing in secagree.c:parsesecagree()
When was CVE-2026-52023 disclosed?
CVE-2026-52023 was first published in the National Vulnerability Database on September 1, 2026, with the most recent update on September 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52023 actively exploited?
CVE-2026-52023 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 73.5% of all scored CVEs.
What is the CVSS score of CVE-2026-52023?
CVE-2026-52023 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-52023?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52023, 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

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