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3874 articles · 153111 vulns · 37/41 feeds (7d)
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7.5
CVE-2026-40618EXPLOITEDPATCHED
f5 · big-ip

BIG-IP SSL/TLS vulnerability

Description

When an SSL profile is configured on a virtual server on BIG-IP Virtual Edition (VE) without Intel QuickAssist Technology (QAT) or on BIG-IP hardware platforms with the database variable crypto.hwacceleration set to disabled, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.   Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected Products

VendorProductVersions
f5big-ip21.0.0, 17.5.0, 17.1.0, 16.1.0, 2.0.0, 1.7.0, 2.0.0, 1.1.0, 2.0.0

References

  • https://my.f5.com/manage/s/article/K000158082(vendor-advisory, patch)

Related News (1 articles)

Tier C
VulDB4h ago
CVE-2026-40618 | F5 BIG-IP prior 17.1.3.1/17.1.5.4/21.0.0.1 Traffic Management Microkernel buffer size (K000158082)
→ No new info (linked only)
CVSS 3.17.5 HIGH
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA KEV❌ No
Actively exploited✅ Yes
Patch available
21.1.021.0.0.117.1.5.417.1.3.1*2.2.0
CWECWE-131
PublishedMay 13, 2026
Last enriched4h agov2
Tags
CVE-2026-40618
Trending Score56
Source articles1
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

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NGINX ngx_http_rewrite_module vulnerability
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MEDIUMCVE-2026-40701EXP
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MEDIUMCVE-2026-42934EXP
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HIGHCVE-2026-40629EXP
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HIGHCVE-2026-40060EXP
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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
May 13, 2026
Discovered by ZDM
May 13, 2026
Updated: description, severity, activelyExploited, tags
May 13, 2026
Actively Exploited
May 13, 2026
Patch Available
May 13, 2026

Version History

v2
Last enriched 4h ago
v2Tier C4h ago

Updated severity to CRITICAL, added new description with technical details, and marked the vulnerability as actively exploited.

descriptionseverityactivelyExploitedtags
via VulDB
v14h ago

Initial creation