CVE-2008-6959: Insecure method vulnerability in the Chilkat Socket ActiveX control (ChilkatSocket.ChilkatSocket.1) in Chilkat

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HIGH 9.3MITIGATE

CVE-2008-6959 is a high-severity flaw (CVSS 9.3) affecting chilkat socket. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Insecure method vulnerability in the Chilkat Socket ActiveX control (ChilkatSocket.ChilkatSocket.1) in ChilkatSocket.dll 2.3.1.1 allows remote attackers to overwrite arbitrary files via the SaveLastError method. NOTE: this might be related to CVE-2008-1647.

Why this priority

Critical severity
EPSS top 7%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	5.7% (top 7%)
CISA exploited list	No
Published	2009-08-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: chilkatsoft

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-08-12 10:30 UTCPublished CVE record published
2026-06-16 23:03 UTCUpdated Record last modified

chilkatsoft chilkat socket MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy chilkat-socket || rpm -q chilkat-socket || chilkat-socket --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Chilkat Socket ActiveX 2.3.1.1 - Arbitrary File Creation

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2008-6959?

chilkat socket: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-6959 being exploited?

CVE-2008-6959 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2008-6959 affect?

CVE-2008-6959 affects chilkat socket. Severity is high (CVSS 9.3). Insecure method vulnerability in the Chilkat Socket ActiveX control (ChilkatSocket.ChilkatSocket.1) in ChilkatSocket.dll 2.3.1.1 allows remote attackers to overwrite arbitrary files via the SaveLastError method. NOTE: this might be related

How urgent is CVE-2008-6959?

Priority 61/100. Critical severity; EPSS top 7%: very likely to be exploited; Public exploit reference

References

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