CVE-2026-51597

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreHIGH confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.1Exploit: NoneExposed: 0

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

MERCURY MIPC252W IP camera v1.0.5 Build 230306 Rel.79931n does not implement nonce expiration in RTSP Digest authentication. An adjacent network attacker can capture a legitimate authentication exchange and replay the nonce and response values in a new connection to bypass authentication without knowledge of the device credentials, gaining unauthorized access to the live video stream.

CVSS v3
9.1
EG Score
9.1(high)
EG Risk
72(Attend)
EG Risk 72/100SSVC: Attend

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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
29.7%
KEV
Not listed

Published

July 9, 2026

Last Modified

July 10, 2026

Advisory Details (1)

Auto-updated Jul 10, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

cve_ID_report/MERCURY_MIPC252W/MERCURY_MIPC252W_5th/README.md at main · kkkk2222874/cve_ID_report · GitHub

https://github.com/kkkk2222874/cve_ID_report/blob/main/MERCURY_MIPC252W/MERCURY_MIPC252W_5th/README.md

Vendor Advisories for CVE-2026-51597(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 50× 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. 2026-07-23 03:19 UTCEG score recompute
  2. 2026-07-22 14:08 UTCEPSS rescore
  3. 2026-07-21 15:25 UTCEPSS rescore
  4. 2026-07-20 17:08 UTCEPSS rescore
  5. 2026-07-19 14:31 UTCEPSS rescore
  6. 2026-07-19 14:31 UTCEPSS rescore
  7. 2026-07-19 02:29 UTCEPSS rescore
  8. 2026-07-18 10:04 UTCEPSS rescore
  9. 2026-07-17 03:57 UTCGHSA enrichment
  10. 2026-07-16 23:53 UTCGHSA enrichment
  11. 2026-07-16 19:50 UTCGHSA enrichment
  12. 2026-07-16 17:03 UTCEPSS rescore
  13. 2026-07-16 15:46 UTCGHSA enrichment
  14. 2026-07-16 11:41 UTCGHSA enrichment
  15. 2026-07-16 07:37 UTCGHSA enrichment
  16. 2026-07-16 03:33 UTCGHSA enrichment
  17. 2026-07-15 23:29 UTCGHSA enrichment
  18. 2026-07-15 19:25 UTCGHSA enrichment
  19. 2026-07-15 16:57 UTCEPSS rescore
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 15:22 UTCGHSA enrichment
  22. 2026-07-15 11:17 UTCGHSA enrichment
  23. 2026-07-15 07:10 UTCGHSA enrichment
  24. 2026-07-15 03:04 UTCGHSA enrichment
  25. 2026-07-15 02:00 UTCEPSS rescore
Show 25 more
  1. 2026-07-15 02:00 UTCEPSS rescore
  2. 2026-07-14 22:58 UTCGHSA enrichment
  3. 2026-07-14 18:54 UTCGHSA enrichment
  4. 2026-07-14 14:49 UTCGHSA enrichment
  5. 2026-07-14 10:42 UTCGHSA enrichment
  6. 2026-07-14 06:38 UTCGHSA enrichment
  7. 2026-07-14 02:32 UTCGHSA enrichment
  8. 2026-07-13 22:31 UTCEPSS rescore
  9. 2026-07-13 22:29 UTCGHSA enrichment
  10. 2026-07-13 18:25 UTCGHSA enrichment
  11. 2026-07-13 14:21 UTCGHSA enrichment
  12. 2026-07-13 10:17 UTCGHSA enrichment
  13. 2026-07-13 06:13 UTCEPSS rescore
  14. 2026-07-13 06:13 UTCGHSA enrichment
  15. 2026-07-13 06:13 UTCEPSS rescore
  16. 2026-07-13 02:09 UTCGHSA enrichment
  17. 2026-07-12 22:05 UTCEG score recompute▲ 9.10
  18. 2026-07-12 22:05 UTCGHSA enrichment
  19. 2026-07-12 05:46 UTCEPSS rescore
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-11 08:27 UTCEPSS rescore
  22. 2026-07-10 17:52 UTCMITRE cvelistV5CVSS v3 → 9.1 · severity → CRITICAL
  23. 2026-07-09 17:54 UTCNVD update
  24. 2026-07-09 17:18 UTCEG score recompute
  25. 2026-07-09 17:15 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-51597?
CVE-2026-51597 is a critical vulnerability published on July 9, 2026. MERCURY MIPC252W IP camera v1.0.5 Build 230306 Rel.79931n does not implement nonce expiration in RTSP Digest authentication. An adjacent network attacker can capture a legitimate authentication exchange and replay the nonce and response values in a new connection to bypass authentication without…
When was CVE-2026-51597 disclosed?
CVE-2026-51597 was first published in the National Vulnerability Database on July 9, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-51597 actively exploited?
CVE-2026-51597 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 29.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-51597?
CVE-2026-51597 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-51597?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-51597, 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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