Security readout for executives and security teams
Plain-English summary
glibc can overflow a buffer while building an assertion failure message in versions 2.13 through 2.40. The practical impact is service or process crash, not data theft. Risk is highest where local users or local workloads can trigger assert failures in software linked to vulnerable glibc.
Executive priority
Treat as a scheduled security maintenance item with higher priority on shared Linux servers and container platforms. The main business risk is local denial of service, not broad remote compromise based on the provided evidence.
Technical view
CVE-2025-0395 is a CWE-131 under-allocation issue in glibc assert(). On assertion failure, glibc may not allocate enough space for the message and size metadata, causing a buffer overflow when message size aligns with page size. CVSS is 6.2 with local attack vector and availability impact.
Likely exposure
Linux systems, containers, and appliances using glibc 2.13 through 2.40 may be exposed. Exposure depends on distribution packaging and whether vulnerable assert failure paths are locally reachable.
Exploitation context
The provided data does not show CISA KEV listing or confirmed active exploitation. The CVSS vector is local, requires no privileges or user interaction, and affects availability. Evidence for remote exploitation is not provided.
Researcher notes
Do not assume all software on an affected host is exploitable. Validate reachable assertion paths and downstream package state. The source bundle identifies glibc 2.13 through 2.40 and CWE-131, but product-specific exposure depends on vendor builds.
Mitigation direction
- Apply glibc updates from the operating system or appliance vendor.
- Track downstream advisories for Debian, NetApp, Siemens, and other affected vendors.
- Prioritize multi-user systems and hosts running untrusted local workloads.
- Review production builds that rely on reachable assert failure paths.
- If no package is available, follow vendor guidance for compensating controls.
Validation and detection
- Inventory glibc versions across hosts, containers, and appliances.
- Check distribution advisories for patched package versions.
- Confirm package update status after remediation.
- Identify local applications that can trigger assert failures.
- Document vendor-dependent systems awaiting patches.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-131: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-0395 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H2.53.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
6.2MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.openwall.com/lists/oss-security/2025/01/22/4CVE reference, glibc
- https://sourceware.org/bugzilla/show_bug.cgi?id=32582CVE reference, glibc
- https://sourceware.org/git/?p=glibc.git;a=blob;f=advisories/GLIBC-SA-2025-0001CVE reference, glibc
- https://sourceware.org/pipermail/libc-announce/2025/000044.htmlCVE reference, glibc
- https://security.netapp.com/advisory/ntap-20250228-0006/CVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2025/04/msg00039.htmlCVE reference, CVE
- https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlCVE reference, siemens-SADP
- https://cert-portal.siemens.com/productcert/html/ssa-577017.htmlCVE reference, siemens-SADP
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.