Is there a public exploit for CVE-2026-123975?

No public exploit for CVE-2026-123975 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-2026-123975?

CVE-2026-123975 scores CVSS 8.7 (v4.0), rated high.

What does CVE-2026-123975 affect?

CVE-2026-123975 affects Grid Community Forum Grid Community Toolkit, globus-gss-assist.

8.7 High

Grid Community Toolkit before 6.2.20261111 (globus-gss-assist before 12.9) contains a heap out-of-bounds write in…

CVE-2026-123975

Grid Community Toolkit before 6.2.20261111 (globus-gss-assist before 12.9) contains a heap out-of-bounds write in globusgssassisttokengetfd() triggered by SSLv2 record lengths below 3. Remote unauthenticated clients can send a crafted GSI handshake record to services like globus-gatekeeper and myproxy to corrupt heap memory and crash the service.

Assessment

CVSS: 8.7 (v4.0)
Severity: High
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: Grid Community Forum · Grid Community Toolkit · globus-gss-assist
Assigner: VulnCheck

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

At the source

EUVD (ENISA)

References

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