CVE-2026-1484: Red Hat Enterprise Linux 10 · Out-of-bounds Write
Affects Red Hat Enterprise Linux 10Source CVE Database V5
Not known to be exploited · CVSS 4.2 Medium.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 27 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat Enterprise Linux 10 | Affected– | Fixed in– |
| Red HatRed Hat Enterprise Linux 6 | Affected– | Fixed in– |
| Red HatRed Hat Enterprise Linux 7 | Affected– | Fixed in– |
| Red HatRed Hat Enterprise Linux 8 | Affected– | Fixed in– |
| Red HatRed Hat Enterprise Linux 9 | Affected– | Fixed in– |
AI-suggested
Until an official fix is available, avoid processing untrusted or extremely large Base64 input with affected GLib versions. Monitor vendor communications for updates on patches or workarounds.
Description
A flaw was found in the GLib Base64 encoding routine when processing very large input data. Due to incorrect use of integer types during length calculation, the library may miscalculate buffer boundaries. This can cause memory writes outside the allocated buffer. Applications that process untrusted or extremely large Base64 input using GLib may crash or behave unpredictably.