A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in PutLE16().
Priority MEDIUM 47CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in PutLE16().
Why it matters now
EPSS 0.02513 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 5 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | libwebp | libwebp 1.0.1 | — | No fix listed | CNA |
- libwebp Vendor— Affected libwebp 1.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:* | before 1.0.1 | Vulnerable | Webmproject |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
- cpe:2.3:a:webmproject:libwebp:*:*:*:*:*:*:*:* Versions before 1.0.1 Vulnerable ·Webmproject
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
Remediation
Red Hat 5 advisories
- RHSA-2021:2364 Released 2021-06-09 · Red Hat rating Importantlibwebp security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) libwebp-1.0.0-4.el8_2, libwebp-devel-1.0.0-4.el8_2
- RHSA-2021:2365 Released 2021-06-09 · Red Hat rating Importantlibwebp security update
- Red Hat Enterprise Linux AppStream EUS (v. 8.1) libwebp-1.0.0-4.el8_1, libwebp-devel-1.0.0-4.el8_1
- RHSA-2021:2354 Released 2021-06-09 · Red Hat rating Importantlibwebp security update
- Red Hat Enterprise Linux AppStream (v. 8) libwebp-1.0.0-3.el8_4, libwebp-devel-1.0.0-3.el8_4
Show 2 more Red Hat advisories
- RHSA-2021:2328 Released 2021-06-08 · Red Hat rating Importantqt5-qtimageformats security update
- Red Hat Enterprise Linux Server (v. 7) qt5-qtimageformats-5.9.7-2.el7_9, qt5-qtimageformats-5.9.7-2.el7_9.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) qt5-qtimageformats-doc-5.9.7-2.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) qt5-qtimageformats-5.9.7-2.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) qt5-qtimageformats-doc-5.9.7-2.el7_9
- RHSA-2021:2260 Released 2021-06-07 · Red Hat rating Importantlibwebp security update
- Red Hat Enterprise Linux Client (v. 7) libwebp-0.3.0-10.el7_9
- Red Hat Enterprise Linux Client Optional (v. 7) libwebp-devel-0.3.0-10.el7_9, libwebp-java-0.3.0-10.el7_9, libwebp-tools-0.3.0-10.el7_9
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libwebp-devel-0.3.0-10.el7_9, libwebp-java-0.3.0-10.el7_9, libwebp-tools-0.3.0-10.el7_9
- Red Hat Enterprise Linux Server (v. 7) libwebp-0.3.0-10.el7_9, libwebp-0.3.0-10.el7_9.ppc
- Red Hat Enterprise Linux Server Optional (v. 7) libwebp-devel-0.3.0-10.el7_9, libwebp-devel-0.3.0-10.el7_9.ppc, libwebp-java-0.3.0-10.el7_9 +1
- Red Hat Enterprise Linux Workstation (v. 7) libwebp-0.3.0-10.el7_9
- Red Hat Enterprise Linux Workstation Optional (v. 7) libwebp-devel-0.3.0-10.el7_9, libwebp-java-0.3.0-10.el7_9, libwebp-tools-0.3.0-10.el7_9
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| 7Server-RHMTC-1.4 | Fixed | — |
| 8Base-RHMTC-1.4 | Fixed | — |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:2354 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.1) | Fixed | RHSA-2021:2365 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2021:2364 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2021:2260 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2021:2260 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2021:2260 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:2260, RHSA-2021:2328 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2021:2260, RHSA-2021:2328 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:2260, RHSA-2021:2328 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2021:2260, RHSA-2021:2328 |
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2018-25011
- 2026-10-03 Alias added: GHSA-vqgc-g267-8p6w
References
Sources
- CVE-2018-25011 · CVE Program
- CVE-2018-25011 · NVD
- FIRST EPSS
- GHSA-vqgc-g267-8p6w · GitHub Advisory Database · CC BY 4.0
- CVE-2018-25011 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences