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-2026-77696
3.7
0%
Sep 29
Timing Side-Channel in SM2 Signature Generation
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
CVE-2026-54875
3.7
0%
Sep 29
Non-Constant-Time SM2 Scalar Multiplication on ARM64 and RISC-V
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
CVE-2026-54872
3.7
0%
Sep 29
Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves
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-2026-35191
3.7
1%
Sep 29
QUIC Unvalidated Amplification Credit may be Over Accounted
Affected: 4.0.0 before 4.0.3; 3.6.0 before 3.6.5; 3.5.0 before 3.5.9
CVE-2026-42770
3.7
1%
Jun 9
FFC-DH Peer Validation Uses Attacker-Supplied q
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-2026-42768
3.7
1%
Jun 9
Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()
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-2021-23839
3.7
3%
Feb 16
OpenSSL 1.0.2 supports SSLv2
Affected: 1.0.2s through 1.0.2x
CVE-2020-1968
3.7
5%
Sep 9
The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a…
Affected: 1.0.2 through 1.0.2v
CVE-2019-1563
3.7
4%
Sep 10
Padding Oracle in PKCS7_dataDecode and CMS_decrypt_set1_pkey
Affected: Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c); Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k); Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s)
CVE-2016-0701
3.7
84%
Feb 15
The DH_check_pub_key function in crypto/dh/dh_check.c in OpenSSL 1.0.2 before 1.0.2f does not ensure that prime numbers are appropriate for Diffie-Hellman (DH) key exchange, which…
Affected: 1.0.2; 1.0.2; 1.0.2; 1.0.2; 1.0.2a; 1.0.2b; +3 more
CVE-2015-4000
3.7
100%
May 21
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows…
Affected: 1.0.1 through 1.0.1m; 1.0.2 through 1.0.2a; through 1.0.1m
CVE-2014-3566
3.4
100%
Oct 15
The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which makes it easier for man-in-the-middle attackers to obtain…
Affected: 0.9.8; 0.9.8a; 0.9.8b; 0.9.8c; 0.9.8d; 0.9.8e; +34 more
CVE-2019-1552
3.3
1%
Jul 30
OpenSSL has internal defaults for a directory tree where it can find a configuration file as well as certificates used for verification in TLS
Affected: 1.0.2 through 1.0.2s; 1.1.0 through 1.1.0k; 1.1.1 through 1.1.1c
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