Libidn
Vendor:
First CVE: Aug 12, 2015 · Active for 10 years
6
Total CVEs
More Total CVEs than 80% of tracked products
2.0
Avg CVEs / Year
Higher CVE frequency than 60% of tracked products
6.7
Avg CVSS
Higher Avg CVSS than 34% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Libidn over time
Volume of CVEsAvg CVSS Base Score
First CVE
Aug 12, 2015
10 years ago
Most Recent CVE
Jun 23, 2026
31 days ago
CVE Severity & Scoring
Libidn6 CVEs
17%
83%
All CVEs352,231 CVEs
45%
40%
11%
LowHigh
Attack Vector
Local1 (16.7%)
Network4 (66.7%)
Unknown1 (16.7%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low4 (66.7%)
High1 (16.7%)
Unknown1 (16.7%)
User Interaction
None5 (83.3%)
Unknown1 (16.7%)
Required0 (0.0%)
Privileges Required
Low1 (16.7%)
High0 (0.0%)
None4 (66.7%)
Unknown1 (16.7%)
Top CVEs
Signals from CVEs in this product scope (6 CVEs).
6 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2015-8948HIGH 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. | Sep 7, 2016 | 7.5 | 27 | NO | NO |
CVE-2016-6263HIGH 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 c | Sep 7, 2016 | 7.5 | 26 | NO | NO |
CVE-2016-6261HIGH 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 inp | Sep 7, 2016 | 7.5 | 26 | NO | NO |
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 pr | Jun 23, 2026 | 2.5 | 21 | NO | NO |
CVE-2016-6262HIGH 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 vul | Sep 7, 2016 | 7.5 | 21 | NO | NO |
CVE-2015-2059HIGH 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 | Aug 12, 2015 | 7.5 | 20 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (6 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (6 CVEs).
Media Mentions
Signals from CVEs in this product scope (6 CVEs).
Top CNAs Publishing CVEs For Libidn
Top CWEs
Versions
No cataloged versions.