CVE-2026-93345

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-22. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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.

MikroTik RouterOS before 7.25beta4 contains an improper input validation vulnerability in the labelled-VPN NLRI iterators of the routing service that allows an unauthenticated on-path attacker to crash the BGP service by sending a malformed MP_REACH_NLRI UPDATE message with a prefix-length value below the minimum valid for a labelled-VPN NLRI, which passes validation while describing a route with a negative-length address portion. Attackers can repeatedly send a single BGP UPDATE packet carrying a VPNv4 or VPNv6 NLRI with an out-of-bounds prefix-length to indefinitely hold down the BGP plane, causing session termination without a NOTIFICATION and triggering a service malfunction on the device. The fix is carried only in 7.25beta4, a development build; the current stable release 7.24.2 and the current long-term release 7.23.5 both remain affected.

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
39%
KEV
Not listed

Published

September 22, 2026

Last Modified

September 24, 2026

Advisory Details (2)

Auto-updated Sep 22, 2026
No patch confirmed yet.
generic

MikroTik RouterOS < 7.25beta4 Improper Input Validation DoS via BGP Labelled-VPN NLRI | Advisories | VulnCheck

https://www.vulncheck.com/advisories/mikrotik-routeros-improper-input-validation-dos-via-bgp-labelled-vpn-nlri
generic

7.25beta [development] is released! - Announcements - MikroTik community forum

https://forum.mikrotik.com/t/7-25beta-development-is-released/272788

Vendor Advisories for CVE-2026-93345(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 19× in last 7d / 19× 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. 2026-09-25 08:45 UTCGHSA enrichment
  2. 2026-09-24 21:22 UTCEG score recompute
  3. 2026-09-24 21:22 UTCGHSA enrichment
  4. 2026-09-24 20:47 UTCEG score recompute
  5. 2026-09-24 20:47 UTCGHSA enrichment
  6. 2026-09-24 18:07 UTCEG score recompute
  7. 2026-09-24 18:07 UTCGHSA enrichment
  8. 2026-09-24 14:04 UTCEPSS rescore
  9. 2026-09-24 06:43 UTCGHSA enrichment
  10. 2026-09-23 19:20 UTCEG score recompute
  11. 2026-09-23 19:20 UTCGHSA enrichment
  12. 2026-09-23 17:54 UTCEPSS rescore
  13. 2026-09-23 07:57 UTCGHSA enrichment
  14. 2026-09-22 20:33 UTCGHSA enrichment
  15. 2026-09-22 19:38 UTCEG score recompute
  16. 2026-09-22 19:38 UTCGHSA enrichment
  17. 2026-09-22 18:32 UTCEG score recompute
  18. 2026-09-22 17:25 UTCEG score recompute
  19. 2026-09-22 17:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-93345?
CVE-2026-93345 is a high vulnerability published on September 22, 2026. MikroTik RouterOS before 7.25beta4 contains an improper input validation vulnerability in the labelled-VPN NLRI iterators of the routing service that allows an unauthenticated on-path attacker to crash the BGP service by sending a malformed MPREACHNLRI UPDATE message with a prefix-length value…
When was CVE-2026-93345 disclosed?
CVE-2026-93345 was first published in the National Vulnerability Database on September 22, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93345 actively exploited?
CVE-2026-93345 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 60.7% of all scored CVEs.
What is the CVSS score of CVE-2026-93345?
CVE-2026-93345 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-93345?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93345, 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-2026-93345

Explore →

Is Your Infrastructure Affected by CVE-2026-93345?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs