CVE-2025-7039 | Glib: buffer under-read on glib through glib/gfileutils.c via get_tmp_file()

A flaw was found in glib. An integer overflow during temporary file creation leads to an out-of-bounds memory access, allowing an attacker to potentially perform path traversal or access private temporary file content by creating symbolic links. This vulnerability allows a local attacker to manipulate file paths and access unauthorized data. The core issue stems from insufficient validation of file path lengths during temporary file operations.

Published: 2025-09-03 Last update: 2026-06-02 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-7039 is rated Low Risk (25.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.37%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-7039

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 0.37% +0.30%
2 2026-05-20 0.03% 0.07% +0.04%
3 2026-01-09 — 0.03% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-7039

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.2 1.4 [email protected]

Weakness enumeration for CVE-2025-7039

GitHub Security Advisory for CVE-2025-7039

GHSA-wcxv-32f4-xr5v · Severity: low — A flaw was found in glib. An integer overflow during temporary file creation leads to an out-of...

OS Trackers for CVE-2025-7039

vendor priority summary link
debian not yet assigned CVE-2025-7039 not yet assigned priority: Debian including 1 source packages (glib2.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-7039
redhat low — https://access.redhat.com/security/cve/CVE-2025-7039
suse medium CVE-2025-7039 severity moderate: SUSE including 541 source package names (0.11.4-10.99:libglib-2_0-0-2.78.6-150600.4.22.1, 0.23.1-11.90:glib2-tools-2.78.6-150600.4.22.1, …), 3333 product×package rows across 347 product lines (Container bci/spack, Container containers/ollama, … (347 product lines)): Fixed 1882, Known Not Affected 1202, Known Affected 231, First Fixed 18. https://www.suse.com/security/cve/CVE-2025-7039/
ubuntu low CVE-2025-7039 low priority: Ubuntu including 1 source packages (glib2.0), 9 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): released 8, not-affected 1. https://ubuntu.com/security/CVE-2025-7039

Affected software / configurations for CVE-2025-7039

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-7039

cvelogic Threat Intelligence