Libtasn1
Vendor:
First CVE: Mar 26, 2012 · Active for 14 years
13
Total CVEs
More Total CVEs than 91% of tracked products
1.6
Avg CVEs / Year
Higher CVE frequency than 59% of tracked products
6.8
Avg CVSS
Higher Avg CVSS than 39% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Libtasn1 over time
Volume of CVEsAvg CVSS Base Score
First CVE
Mar 26, 2012
14 years ago
Most Recent CVE
Jan 7, 2026
198 days ago
CVE Severity & Scoring
Libtasn113 CVEs
46%
46%
All CVEs352,294 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local1 (7.7%)
Network6 (46.2%)
Unknown6 (46.2%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low6 (46.2%)
High1 (7.7%)
Unknown6 (46.2%)
User Interaction
None5 (38.5%)
Unknown6 (46.2%)
Required2 (15.4%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None7 (53.8%)
Unknown6 (46.2%)
Top CVEs
Signals from CVEs in this product scope (13 CVEs).
13 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2017-6891HIGH Two errors in the "asn1_find_node()" function (lib/parser_aux.c) within GnuTLS libtasn1 version 4.10 can be exploited to cause a stacked-based buffer overflow by tricking a user in | May 22, 2017 | 8.8 | 31 | NO | NO |
CVE-2016-4008MEDIUM The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.8, when used without the ASN1_DECODE_FLAG_STRICT_DER flag, allows remote attackers to cause a denial | May 5, 2016 | 5.9 | 31 | NO | NO |
CVE-2021-46848CRITICAL GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der. | Oct 24, 2022 | 9.1 | 29 | NO | NO |
CVE-2025-13151HIGH Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a buffer overflow in asn1_expend_octet_string. | Jan 7, 2026 | 7.5 | 27 | NO | NO |
CVE-2015-2806HIGH Stack-based buffer overflow in asn1_der_decoding in libtasn1 before 4.4 allows remote attackers to have unspecified impact via unknown vectors. | Apr 10, 2015 | 10.0 | 27 | NO | NO |
CVE-2015-3622MEDIUM The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted certi | May 12, 2015 | 4.3 | 26 | NO | NO |
CVE-2018-6003HIGH An issue was discovered in the _asn1_decode_simple_ber function in decoding.c in GNU Libtasn1 before 4.13. Unlimited recursion in the BER decoder leads to stack exhaustion and DoS. | Jan 22, 2018 | 7.5 | 25 | NO | NO |
CVE-2018-1000654MEDIUM GNU Libtasn1-4.13 libtasn1-4.13 version libtasn1-4.13, libtasn1-4.12 contains a DoS, specifically CPU usage will reach 100% when running asn1Paser against the POC due to an issue i | Aug 20, 2018 | 5.5 | 21 | NO | NO |
CVE-2017-10790HIGH The _asn1_check_identifier function in GNU Libtasn1 through 4.12 causes a NULL pointer dereference and crash when reading crafted input that triggers assignment of a NULL value wit | Jul 2, 2017 | 7.5 | 21 | NO | NO |
CVE-2012-1569MEDIUM The asn1_get_length_der function in decoding.c in GNU Libtasn1 before 2.12, as used in GnuTLS before 3.0.16 and other products, does not properly handle certain large length values | Mar 26, 2012 | 5.0 | 21 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (13 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 (13 CVEs).
Media Mentions
Signals from CVEs in this product scope (13 CVEs).
Top CNAs Publishing CVEs For Libtasn1
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 4.20.0 | 1 | 7.5 | 1.1% | 0 | 0 |
| 4.13 | 1 | 5.5 | 2.0% | 0 | 0 |
| 4.12 | 1 | 5.5 | 2.0% | 0 | 0 |
| 4.10 | 1 | 8.8 | 5.6% | 0 | 0 |
| 2.9 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.8 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.7 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.6 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.5 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.4 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.3 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.2 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.10 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.1 | 1 | 5.0 | 4.5% | 0 | 0 |
| 2.0 | 1 | 5.0 | 4.5% | 0 | 0 |
| 1.8 | 1 | 5.0 | 4.5% | 0 | 0 |
| 1.7 | 1 | 5.0 | 4.5% | 0 | 0 |
| 1.6 | 1 | 5.0 | 4.5% | 0 | 0 |
| 1.5 | 1 | 5.0 | 4.5% | 0 | 0 |
| 1.4 | 1 | 5.0 | 4.5% | 0 | 0 |