LI
Product
libidn
by GNU · last CVE Jun 23, 2026
6
CVEs
0
On KEV
7.5
Max CVSS
0
New 30D
Severity mix
Critical 0High 4Medium 0Low 1
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Add libidn to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2016-6263
7.5
4%
Sep 7
The stringprep_utf8_nfkc_normalize function in lib/nfkc.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via…
Affected: through 1.32
CVE-2016-6262
7.5
7%
Sep 7
idn in libidn before 1.33 might allow remote attackers to obtain sensitive memory information by reading a zero byte as input, which triggers an out-of-bounds read, a different…
Affected: through 1.32
CVE-2016-6261
7.5
4%
Sep 7
The idna_to_ascii_4i function in lib/idna.c in libidn before 1.33 allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) via 64 bytes of…
Affected: through 1.32
CVE-2015-8948
7.5
7%
Sep 7
idn in GNU libidn before 1.33 might allow remote attackers to obtain sensitive memory information by reading a zero byte as input, which triggers an out-of-bounds read
Affected: through 1.32
CVE-2026-57053
2.5
0%
Jun 23
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
Affected: before 1.44
CVE-2015-2059
–
3%
Aug 12
The stringprep_utf8_to_ucs4 function in libin before 1.31, as used in jabberd2, allows context-dependent attackers to read system memory and possibly have other unspecified impact…
Affected: through 1.30
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