MEDIUM
CVE-2026-42408
CWE-312Published: May 13, 2026· Updated: May 13, 2026
4.4
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:2.8th
Official Description
When BIG-IP DNS is provisioned, a vulnerability exists in an undisclosed TMOS Shell (tmsh) command that may allow a highly privileged authenticated attacker to view sensitive information. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Technical Analysis
CVE-2026-42408 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 4.4.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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All References (1)
Quick Facts
CVE IDCVE-2026-42408
CVSS Score4.4 / 10
SeverityMEDIUM
WeaknessCWE-312
CISA KEVNo
EPSS (30d)0.01%
PublishedMay 13, 2026
Related CVEs (CWE-312)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-42408 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.