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CVE-2026-3949

🗓️ 11 Mar 2026 18:32:09Reported by Debian Security Bug TrackerType 
debiancve
 debiancve🔗 security-tracker.debian.org👁 5 Views

Local libheif flaw up to 1.21.2 allows out-of-bounds read by argument size in push_data2.

Related
Packages
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-3949
11 Mar 202618:32
–attackerkb
Tenable Nessus		Amazon Linux 2023 : heif-pixbuf-loader, libheif, libheif-devel (ALAS2023-2026-1509)
1 Apr 202600:00
–nessus
Tenable Nessus		SUSE SLED15 / SLES15 Security Update : libheif (SUSE-SU-2026:1660-1)
2 May 202600:00
–nessus
Tenable Nessus		SUSE SLED15: gdk-pixbuf-loader-libheif / libheif-aom / libheif-dav1d / etc (SUSE-SU-2026:2622-1)
26 Jun 202600:00
–nessus
Tenable Nessus		Linux Distros Unpatched Vulnerability : CVE-2026-3949
12 Mar 202600:00
–nessus
Amazon		Low: libheif
1 Apr 202600:00
–amazon
BDU FSTEC		The vulnerability of the vvdec_push_data2() function in the HEIF File Parser component, a decoder and file format parser library, allows a malicious actor to gain unauthorized access to protected information.
13 Apr 202600:00
–bdu_fstec
CNNVD		libheif 缓冲区错误漏洞
11 Mar 202600:00
–cnnvd
CVE		CVE-2026-3949
11 Mar 202618:32
–cve
Cvelist		CVE-2026-3949 strukturag libheif HEIF File decoder_vvdec.cc vvdec_push_data2 out-of-bounds
11 Mar 202618:32
–cvelist
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian999anylibheif1.23.1-1libheif_1.23.1-1_any.deb
Debian11anylibheif1.11.0-1+deb11u2libheif_1.11.0-1+deb11u2_any.deb
Debian12anylibheif1.15.1-1+deb12u1libheif_1.15.1-1+deb12u1_any.deb
Debian13anylibheif1.19.8-1libheif_1.19.8-1_any.deb
Debian14anylibheif1.21.2-4libheif_1.21.2-4_any.deb

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11 Mar 2026 18:32Current
4Medium risk
Vulners AI Score4
CVSS 21.7
CVSS 3.13.3
CVSS 44.8
CVSS 33.3
EPSS0.00117
SSVC
libheifout of boundsargument sizepush_data2local vulnerability
5