CVE-2025-15537
CVE-2025-15537 is a medium-severity vulnerability in Mapnik with a CVSS 3.x base score of 5.3. 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-787.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v2: 4.3
- CVSS v4: 1.9
- EPSS exploit prediction: 0% (9th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-3179
- Weakness: CWE-787
- Affected product: Mapnik
- Published:
- Last modified:
Description
A security vulnerability has been detected in Mapnik up to 4.2.0. This issue affects the function mapnik::dbf_file::string_value of the file plugins/input/shape/dbfile.cpp. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Frequently asked questions
- What is CVE-2025-15537?
- A security vulnerability has been detected in Mapnik up to 4.2.0. This issue affects the function mapnik::dbf_file::string_value of the file plugins/input/shape/dbfile.cpp. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
- How severe is CVE-2025-15537?
- CVE-2025-15537 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2025-15537 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-15537?
- CVE-2025-15537 affects Mapnik. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-15537?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-15537 have an EU (EUVD) identifier?
- Yes. CVE-2025-15537 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3179.
- When was CVE-2025-15537 published?
- CVE-2025-15537 was published on 2026-01-18 and last updated on 2026-06-17.
References
- https://github.com/mapnik/mapnik/
- https://github.com/mapnik/mapnik/issues/4543
- https://github.com/oneafter/1218/blob/main/repro
- https://vuldb.com/?ctiid.341709
- https://vuldb.com/?id.341709
- https://vuldb.com/?submit.733348
Affected products (1)
- cpe:2.3:a:mapnik:mapnik:*:*:*:*:*:*:*:*
More vulnerabilities in Mapnik
- CVE-2025-15564 — Low (CVSS 3.3): A vulnerability has been found in Mapnik up to 4.2.0. This vulnerability affects the function…
Other CWE-787 (Out-of-bounds Write) vulnerabilities
- CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
- CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src modules). This vulnerability is…
- CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
- CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
- CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
- CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…