Security readout for executives and security teams
CVE-2020-25668 is a Linux kernel flaw in virtual terminal font handling. Poor synchronization of fg_console can cause a use-after-free in con_font_op. The bundle provides no CVSS score or confirmed active exploitation, but kernel security updates are referenced. Exposure is most likely on systems running affected Linux kernel builds, specifically the listed Linux Kernel 5.9.2 or vendor kernels that included the vulnerable vt code before fixes. Treat this as a kernel patch governance item, not an emergency exploitation event based on current sources. Prioritize internet-facing, multi-user, and sensitive Linux systems first. Mitigation focus: Check Linux distribution and vendor advisories for affected kernel packages.; Apply relevant kernel security updates from the operating system vendor.; Review the upstream kernel commit referenced for fix tracking..
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
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ATT&CK lookup starting points
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CWE-362: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-25668 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- [debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security updateCVE reference · mailing-list, x_refsource_MLIST
- [debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security updateCVE reference · mailing-list, x_refsource_MLIST
- https://www.openwall.com/lists/oss-security/2020/11/04/3%2CCVE reference · x_refsource_MISC
- https://www.openwall.com/lists/oss-security/2020/10/30/1%2CCVE reference · x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2CCVE reference · x_refsource_MISC
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220CVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20210702-0005/CVE reference · x_refsource_CONFIRM
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.
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.