CVE-2018-9261

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. 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
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.5Exploit: NoneExposed: 0

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

In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, the NBAP dissector could crash with a large loop that ends with a heap-based buffer overflow. This was addressed in epan/dissectors/packet-nbap.c by prohibiting the self-linking of DCH-IDs.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
85.7%
KEV
Not listed

Published

April 4, 2018

Last Modified

November 21, 2024

References (10)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 41× 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. 2026-07-22 22:18 UTCEG score recompute
  2. 2026-07-22 14:05 UTCEPSS rescore
  3. 2026-07-21 15:22 UTCEPSS rescore
  4. 2026-07-21 15:18 UTCOSV refresh
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  1. 2026-07-04 10:56 UTCOSV refresh
  2. 2026-07-04 06:28 UTCEPSS rescore
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  26. 2026-06-15 22:39 UTCOSV refresh
  27. 2026-06-15 17:45 UTCEPSS rescore
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  49. 2026-05-31 22:29 UTCEPSS rescore
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  53. 2026-05-29 13:41 UTCEPSS rescore
  54. 2026-05-28 13:43 UTCEPSS rescore
  55. 2026-05-28 13:42 UTCEPSS rescore
  56. 2026-05-28 09:41 UTCEG score recompute
  57. 2026-05-28 09:40 UTCGHSA enrichment
  58. 2026-05-27 13:38 UTCEPSS rescore
  59. 2026-05-26 13:42 UTCEPSS rescore
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  61. 2026-05-26 07:17 UTCEPSS rescore
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  63. 2026-05-23 20:35 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-9261?
CVE-2018-9261 is a high vulnerability published on April 4, 2018. In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, the NBAP dissector could crash with a large loop that ends with a heap-based buffer overflow. This was addressed in epan/dissectors/packet-nbap.c by prohibiting the self-linking of DCH-IDs.
When was CVE-2018-9261 disclosed?
CVE-2018-9261 was first published in the National Vulnerability Database on April 4, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-9261 actively exploited?
CVE-2018-9261 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-9261?
CVE-2018-9261 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-9261?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-9261, 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.

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