ST
Product
strongSwan
by strongSwan · last CVE Sep 11, 2026
51
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 4High 18Medium 6Low 4
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2025-62291
8.1
1%
Jan 16
In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow…
Affected: 4.2.12 before 6.0.3
CVE-2026-78133
7.5
0%
Sep 11
libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling
Affected: 6.0.0 before 6.1.0
CVE-2026-78132
7.5
0%
Sep 11
strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietfAttrSyntax
Affected: 5.1.3 before 6.1.0
CVE-2026-78130
7.5
0%
Sep 11
strongSwan 4.2.0 through 6.0.7 has a NULL pointer dereference in the x509 plugin's attribute certificate parser
Affected: 4.2.0 before 6.1.0
CVE-2026-47895
7.5
0%
Aug 22
In strongSwan before 6.0.7, identity parsing/cloning is mishandled
Affected: 4.3.3 before 6.0.7
CVE-2026-25075
7.5
1%
Mar 23
strongSwan 4.5.0 < 6.0.5 EAP-TTLS AVP Parsing Integer Underflow
Affected: 4.5.0 before 6.0.5
CVE-2022-40617
7.5
2%
Oct 31
strongSwan before 5.9.8 allows remote attackers to cause a denial of service in the revocation plugin by sending a crafted end-entity (and intermediate CA) certificate that…
Affected: before 5.9.8
CVE-2021-41991
7.5
5%
Oct 18
The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later…
Affected: 4.2.10 before 5.9.4
CVE-2021-41990
7.5
7%
Oct 18
The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature
Affected: 5.6.1 before 5.9.4
CVE-2018-17540
7.5
4%
Oct 3
The gmp plugin in strongSwan before 5.7.1 has a Buffer Overflow via a crafted certificate
Affected: before 5.7.1
CVE-2018-16152
7.5
2%
Sep 26
In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data…
Affected: 4.0.0 through 4.6.4; 5.0.0 before 5.7.0
CVE-2018-16151
7.5
2%
Sep 26
In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data…
Affected: 4.0.0 through 4.6.4; 5.0.0 before 5.7.0
CVE-2018-10811
7.5
6%
Jun 19
strongSwan 5.6.0 and older allows Remote Denial of Service because of Missing Initialization of a Variable
Affected: 5.0.1 before 5.6.3
CVE-2017-11185
7.5
3%
Aug 18
The gmp plugin in strongSwan before 5.6.0 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted RSA signature
Affected: through 5.5.3
CVE-2017-9023
7.5
2%
Jun 8
The ASN.1 parser in strongSwan before 5.5.3 improperly handles CHOICE types when the x509 plugin is enabled, which allows remote attackers to cause a denial of service (infinite…
Affected: through 5.5.2
CVE-2017-9022
7.5
2%
Jun 8
The gmp plugin in strongSwan before 5.5.3 does not properly validate RSA public keys before calling mpz_powm_sec, which allows remote peers to cause a denial of service (floating…
Affected: through 5.5.2
CVE-2026-78135
7.3
0%
Sep 11
libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine
Affected: 5.9.7 before 6.1.0
CVE-2026-78134
7.1
0%
Sep 11
strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there can be a missing or mismatched inner EAP identity
Affected: 4.5.0 before 6.1.0
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