Buffer Overflow vulnerability in WEBP_Support.cpp in exempi 2.5.0 and earlier allows…
Priority MEDIUM 62CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.
Summary
Buffer Overflow vulnerability in WEBP_Support.cpp in exempi 2.5.0 and earlier allows remote attackers to cause a denial of service via opening of crafted webp file.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01003 63rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:exempi_project:exempi:*:*:*:*:*:*:*:* | up to 2.5.0 | Vulnerable | Exempi Project |
- cpe:2.3:a:exempi_project:exempi:*:*:*:*:*:*:*:* Versions up to 2.5.0 Vulnerable ·Exempi Project
Remediation
Red Hat 1 advisory
- RHSA-2024:3066 Released 2024-05-22 · Red Hat rating Moderateexempi security update
- Red Hat Enterprise Linux AppStream (v. 8) exempi-2.4.5-4.el8
- Red Hat Enterprise Linux CRB (v. 8) exempi-devel-2.4.5-4.el8
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:3066 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:3066 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2020-18652
- 2026-10-03 Alias added: GHSA-fm7g-gm7p-w792
References
More Exempi Project Exempi vulnerabilities
- TI-2020-13418 Buffer Overflow vulnerability in function ID3_Support::ID3v2Frame::getFrameValue in… CVSS 3.1MEDIUM 6.5
- TI-2018-09078 The WEBP::GetLE32 function in XMPFiles/source/FormatSupport/WEBP_Support.hpp in Exempi… CVSS 3.0HIGH 7.5
- TI-2017-13419 An issue was discovered in Exempi before 2.4.3. CVSS 3.0HIGH 7.8
- TI-2018-05576 An issue was discovered in Exempi through 2.4.4. CVSS 3.0MEDIUM 5.5
- TI-2018-05574 An issue was discovered in Exempi through 2.4.4. CVSS 3.0MEDIUM 5.5
- TI-2017-13423 An issue was discovered in Exempi before 2.4.4. CVSS 3.0MEDIUM 5.5
Sources
- CVE-2020-18652 · CVE Program
- CVE-2020-18652 · NVD
- FIRST EPSS
- GHSA-fm7g-gm7p-w792 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-18652 · 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