Is there a public exploit for CVE-2026-128237?

No public exploit for CVE-2026-128237 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-128237?

CVE-2026-128237 scores CVSS 6.9 (v4.0), rated medium.

What does CVE-2026-128237 affect?

CVE-2026-128237 affects SecDev scapy.

6.9 Medium

Scapy before 2.8.0 contains a denial of service vulnerability in BERnumdec() and BERcodecOID.dodec() that allows remote attackers to…

CVE-2026-128237

Scapy before 2.8.0 contains a denial of service vulnerability in BERnumdec() and BERcodecOID.dodec() that allows remote attackers to exhaust CPU by supplying oversized OID arcs. Attackers can send ASN.1/BER data with many base-128 continuation bytes to cause quadratic CPU consumption or an uncaught ValueError crash on Python 3.11+.

Assessment

CVSS: 6.9 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: SecDev · scapy
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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