How severe is CVE-2012-0823?

CVE-2012-0823 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-0823 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0823?

CVE-2012-0823 primarily affects Webmproject Libvpx. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0823?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-0823 published?

CVE-2012-0823 was published on 2012-02-23 and last updated on 2026-06-16.

CVE-2012-0823

CVE-2012-0823 is a medium-severity vulnerability in Webmproject Libvpx with a CVSS 2.0 base score of 5.0. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Webmproject Libvpx
Published: 2012-02-23
Last modified: 2026-06-16

Description

VP8 Codec SDK (libvpx) before 1.0.0 "Duclair" allows remote attackers to cause a denial of service (application crash) via (1) unspecified "corrupt input" or (2) by "starting decoding from a P-frame," which triggers an out-of-bounds read, related to "the clamping of motion vectors in SPLITMV blocks".

Frequently asked questions

What is CVE-2012-0823?: VP8 Codec SDK (libvpx) before 1.0.0 "Duclair" allows remote attackers to cause a denial of service (application crash) via (1) unspecified "corrupt input" or (2) by "starting decoding from a P-frame," which triggers an out-of-bounds read, related to "the clamping of motion vectors in SPLITMV blocks".
How severe is CVE-2012-0823?: CVE-2012-0823 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-0823 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0823?: CVE-2012-0823 primarily affects Webmproject Libvpx. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0823?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0823 published?: CVE-2012-0823 was published on 2012-02-23 and last updated on 2026-06-16.

References

Affected products (7)

cpe:2.3:a:webmproject:libvpx:*:p1:*:*:*:*:*:*
cpe:2.3:a:webmproject:libvpx:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:webmproject:libvpx:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:webmproject:libvpx:0.9.2:*:*:*:*:*:*:*
cpe:2.3:a:webmproject:libvpx:0.9.5:*:*:*:*:*:*:*
cpe:2.3:a:webmproject:libvpx:0.9.6:*:*:*:*:*:*:*
cpe:2.3:a:webmproject:libvpx:0.9.7:*:*:*:*:*:*:*

More vulnerabilities in Webmproject Libvpx

CVE-2010-4203 — Critical (CVSS 9.8): WebM libvpx (aka the VP8 Codec SDK) before 0.9.5, as used in Google Chrome before 7.0.517.44, allows remote attackers…
CVE-2024-5197 — Critical (CVSS 9.1): There exists interger overflows in libvpx in versions prior to 1.14.1. Calling vpx_img_alloc() with a large value of…
CVE-2023-5217 — High (CVSS 8.8): Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a…
CVE-2023-6349 — High (CVSS 7.5): A heap overflow vulnerability exists in libvpx - Encoding a frame that has larger dimensions than the originally…
CVE-2023-44488 — High (CVSS 7.5): VP9 in libvpx before 1.13.1 mishandles widths, leading to a crash related to encoding.

All CVEs affecting Webmproject Libvpx →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →