Linux · 
Ubuntu · Package update · January 20, 2026
Ubuntu · Package update · January 20, 2026libc6 2.27-3ubuntu1.6+esm6: libc6 2.27-3ubuntu1.6+esm6 for Ubuntu 18.04.6 LTS (bionic)
libc6 2.27-3ubuntu1.6+esm6, released January 20, 2026, fixes 3 CVEs in libc6. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
8.1
Base score, 0 to 10
Highest EPSS
0.0062
50th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 2
Routine 1
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| libc6 | Ubuntu 18.04.6 LTS (bionic) | 2.27-3ubuntu1.6+esm6 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-0915 | getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler | 8.1 | 0.0062 | None reported |
| High | CVE-2025-15281 | wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory | 8.1 | 0.0049 | None reported |
| Routine | CVE-2025-8058 | glibc: Fixed double-free after allocation failure in regcomp | 4.2 | 0.0022 | None reported |
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