How severe is CVE-2018-0429?

CVE-2018-0429 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-0429 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0429?

CVE-2018-0429 affects Cisco Thor Video Codec. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-0429?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-0429 published?

CVE-2018-0429 was published on 2018-08-09 and last updated on 2026-06-17.

CVE-2018-0429

CVE-2018-0429 is a high-severity vulnerability in Cisco Thor Video Codec with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Thor Video Codec
Published: 2018-08-09
Last modified: 2026-06-17

Description

Stack-based buffer overflow in the Cisco Thor decoder before commit 18de8f9f0762c3a542b1122589edb8af859d9813 allows local users to cause a denial of service (segmentation fault) and execute arbitrary code via a crafted non-conformant Thor bitstream.

Frequently asked questions

What is CVE-2018-0429?: Stack-based buffer overflow in the Cisco Thor decoder before commit 18de8f9f0762c3a542b1122589edb8af859d9813 allows local users to cause a denial of service (segmentation fault) and execute arbitrary code via a crafted non-conformant Thor bitstream.
How severe is CVE-2018-0429?: CVE-2018-0429 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-0429 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0429?: CVE-2018-0429 affects Cisco Thor Video Codec. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-0429?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-0429 published?: CVE-2018-0429 was published on 2018-08-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cisco:thor_video_codec:*:*:*:*:*:*:*:*

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