OP
Product
OpenSSL
by OpenSSL · last CVE Sep 29, 2026
On CISA KEVExploited in the wild
317
CVEs
1
On KEV
9.8
Max CVSS
14
New 30D
Severity mix
Critical 17High 87Medium 74Low 13
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-35189
5.3
0%
Sep 29
Excessive Memory Allocation in Relative CRLDP Processing
Affected: 4.0.0 before 4.0.3; 3.6.0 before 3.6.5; 3.5.0 before 3.5.9; 3.4.0 before 3.4.8; 3.0.0 before 3.0.23; 1.1.1 before 1.1.1zj; +1 more
CVE-2026-42769
5.3
1%
Jun 9
Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate
Affected: 4.0.0 before 4.0.1; 3.6.0 before 3.6.3; 3.5.0 before 3.5.7; 3.4.0 before 3.4.6
CVE-2026-22796
5.3
1%
Jan 27
ASN1_TYPE Type Confusion in the PKCS7_digest_from_attributes() function
Affected: 3.6.0 before 3.6.1; 3.5.0 before 3.5.5; 3.4.0 before 3.4.4; 3.3.0 before 3.3.6; 3.0.0 before 3.0.19; 1.1.1 before 1.1.1ze; +1 more
CVE-2023-5678
5.3
4%
Nov 6
Excessive time spent in DH check / generation with large Q parameter value
Affected: 1.0.2 before 1.0.2zj; 1.1.1 before 1.1.1x; 3.0.0 before 3.0.13; 3.1.0 before 3.1.5
CVE-2023-3817
5.3
3%
Jul 31
Excessive time spent checking DH q parameter value
Affected: 3.1.0 before 3.1.2; 3.0.0 before 3.0.10; 1.1.1 before 1.1.1v; 1.0.2 before 1.0.2zi
CVE-2023-3446
5.3
7%
Jul 19
Excessive time spent checking DH keys and parameters
Affected: 3.1.0 before 3.1.2; 3.0.0 before 3.0.10; 1.1.1 before 1.1.1v; 1.0.2 before 1.0.2zi
CVE-2023-2975
5.3
1%
Jul 14
Issue summary: The AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries which are unauthenticated as a consequence
Affected: 3.0.0 through 3.0.9; 3.1.0 through 3.1.1
CVE-2023-0466
5.3
2%
Mar 28
Certificate policy check not enabled
Affected: 3.1.0 before 3.1.1; 3.0.0 before 3.0.9; 1.1.1 before 1.1.1u; 1.0.2 before 1.0.2zh
CVE-2023-0465
5.3
2%
Mar 28
Invalid certificate policies in leaf certificates are silently ignored
Affected: 3.1.0 before 3.1.1; 3.0.0 before 3.0.9; 1.1.1 before 1.1.1u; 1.0.2 before 1.0.2zh
CVE-2022-2097
5.3
5%
Jul 5
AES OCB fails to encrypt some bytes
Affected: Fixed in OpenSSL 3.0.5 (Affected 3.0.0-3.0.4); Fixed in OpenSSL 1.1.1q (Affected 1.1.1-1.1.1p)
CVE-2022-1343
5.3
2%
May 3
OCSP_basic_verify may incorrectly verify the response signing certificate
Affected: Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2)
CVE-2019-1551
5.3
14%
Dec 6
rsaz_512_sqr overflow bug on x86_64
Affected: Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d); Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t)
CVE-2019-1549
5.3
6%
Sep 10
OpenSSL 1.1.1 introduced a rewritten random number generator (RNG)
Affected: 1.1.1 through 1.1.1c
CVE-2017-3735
5.3
21%
Aug 28
While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread
Affected: 0.9.7j; 0.9.7k; 0.9.7l; 0.9.7m; 0.9.8; 0.9.8a; +34 more
CVE-2015-3195
5.3
39%
Dec 6
The ASN1_TFLG_COMBINE implementation in crypto/asn1/tasn_dec.c in OpenSSL before 0.9.8zh, 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1q, and 1.0.2 before 1.0.2e mishandles errors…
Affected: before 0.9.8zh; 1.0.0 before 1.0.0t; 1.0.1 before 1.0.1q; 1.0.2 before 1.0.2e
CVE-2016-0702
5.1
2%
Mar 3
The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during…
Affected: 1.0.1; 1.0.1; 1.0.1; 1.0.1; 1.0.1a; 1.0.1b; +26 more
CVE-2026-35188
5.0
0%
Jun 9
Double-free When Checking OCSP Stapled Response
Affected: 4.0.0 before 4.0.1; 3.6.0 before 3.6.3
CVE-2022-4203
4.9
1%
Feb 24
A read buffer overrun can be triggered in X.509 certificate verification, specifically in name constraint checking
Affected: 3.0.0 before 3.0.8
CVE-2026-45446
4.8
0%
Jun 9
Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes
Affected: 4.0.0 before 4.0.1; 3.6.0 before 3.6.3; 3.5.0 before 3.5.7; 3.4.0 before 3.4.6; 3.0.0 before 3.0.21
CVE-2025-68160
4.7
0%
Jan 27
Heap out-of-bounds write in BIO_f_linebuffer on short writes
Affected: 3.6.0 before 3.6.1; 3.5.0 before 3.5.5; 3.4.0 before 3.4.4; 3.3.0 before 3.3.6; 3.0.0 before 3.0.19; 1.1.1 before 1.1.1ze; +1 more
CVE-2019-1547
4.7
1%
Sep 10
Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths
Affected: 1.0.2 through 1.0.2s; 1.1.0 through 1.1.0k; 1.1.1 through 1.1.1c
CVE-2018-5407
4.7
3%
Nov 15
Simultaneous Multi-threading (SMT) in processors can enable local users to exploit software vulnerable to timing attacks via a side-channel timing attack on 'port contention'
Affected: 1.0.2 before 1.0.2q; 1.1.0 before 1.1.0i
CVE-2024-9143
4.3
6%
Oct 16
Low-level invalid GF(2^m) parameters lead to OOB memory access
Affected: 3.3.0 before 3.3.3; 3.2.0 before 3.2.4; 3.1.0 before 3.1.8; 3.0.0 before 3.0.16; 1.1.1 before 1.1.1zb; 1.0.2 before 1.0.2zl
CVE-2025-69418
4.0
0%
Jan 27
Unauthenticated/unencrypted trailing bytes with low-level OCB function calls
Affected: 3.6.0 before 3.6.1; 3.5.0 before 3.5.5; 3.4.0 before 3.4.4; 3.3.0 before 3.3.6; 3.0.0 before 3.0.19; 1.1.1 before 1.1.1ze
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