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Low 2.5Published Jun 23, 2026
CVE-2026-57053GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal.
Updated under an hour ago ()
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GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2.
- CVSS
- 2.5 LOW (v3.1, NVD)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-1284
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
gnu libidn gnu:libidn | from 0.1.15 before 1.44 | NVD |
References
- https://lists.gnu.org/archive/html/help-libidn/2026-05/msg00000.htmlexploit, mailing-list
- https://lists.gnu.org/archive/html/help-libidn/2026-06/msg00001.htmlmailing-list
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.