In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::Image::byteSwap4…
Priority LOW 39CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
In Exiv2 0.26, there is a heap-based buffer over-read in the Exiv2::Image::byteSwap4 function in image.cpp. Remote attackers can exploit this vulnerability to disclose memory data or cause a denial of service via a crafted TIFF file.
Why it matters now
EPSS 0.018 78th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2017-17723
- 2026-10-03 Alias added: GHSA-3rjq-mvxx-wgcw
References
Advisory 1
More Exiv2 vulnerabilities
- TI-2020-13478 Buffer Overflow vulnerability in tEXtToDataBuf function in pngimage.cpp in Exiv2 0.27.1… CVSS 3.1HIGH 7.8
- TI-2025-19560 Use After Free in Exiv2 CVSS 4.0MEDIUM 5.3
- TI-2020-13491 An uncontrolled memory allocation in DataBufdata(subBox.length-sizeof(box)) function of… CVSS 3.1MEDIUM 6.5
- TI-2018-08245 Exiv2 0.26 has a heap-based buffer overflow in getData in preview.cpp. CVSS 3.0CRITICAL 9.8
- TI-2025-33923 Exiv2 Segmentation Faults in Exiv2::EpsImage::writeMetadata() via crafted EPS file CVSS 4.0LOW 1.8
- TI-2019-06608 An issue was discovered in Exiv2 0.27. CVSS 3.0HIGH 8.8
Sources
- CVE-2017-17723 · CVE Program
- CVE-2017-17723 · NVD
- FIRST EPSS
- GHSA-3rjq-mvxx-wgcw · GitHub Advisory Database · CC BY 4.0
- CVE-2017-17723 · 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