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    <title>Libreswan Project — recent CVEs</title>
    <link>https://vulnogram.org/</link>
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    <description>Most recent CVEs assigned by Libreswan Project (libreswan).</description>
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      <title>Libreswan Project — recent CVEs</title>
      <link>https://vulnogram.org/</link>
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    <lastBuildDate>Wed, 21 Oct 2026 07:00:07 GMT</lastBuildDate>
    <item>
      <title>CVE-2026-77207 · 7.5 HIGH 🌩️ — Null Pointer Dereference in PKCS#7 bundle with no certificates</title>
      <link>https://vulnogram.org/CVE-2026-77207</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-77207</guid>
      <description>Libreswan has a null pointer dereference bug in the PKCS#7 handling code for IKE certificate authentication. When libreswan decodes an IKE CERT payload of type CERT_PKCS7_WRAPPED_X509, it guards the PKCS#7 blob with SEC_PKCS7ContainsCertsOrCrls() and…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Tue, 13 Oct 2026 21:28:19 GMT</pubDate>
    </item>
    <item>
      <title>CVE-2026-77206 · 7.5 HIGH 🌩️ — IKEv2 pre-authentication Null Pointer Dereference in EAP code</title>
      <link>https://vulnogram.org/CVE-2026-77206</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-77206</guid>
      <description>Libreswan&apos;s IKEv2 state machine has a null pointer dereference bug in the EAP handling code for authentication. As a result of inconsistency within the IKEv2 state machine code, this bug can be triggered by any IKEv2 connection, even if EAP is not co…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Tue, 13 Oct 2026 21:28:11 GMT</pubDate>
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    <item>
      <title>CVE-2026-77205 · 3.7 LOW 🌩️ — Denial of Service via sending bogus X.509 certificates</title>
      <link>https://vulnogram.org/CVE-2026-77205</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-77205</guid>
      <description>Libreswan in FIPS mode has a vulnerability where badly formed received certificates are rejected, but not deleted from the NSS cache. As a result, any real certificates with the same serial number are rejected as well. This can be abused to lock out…</description>
      <category>Low</category>
      <category>Network Exploitable</category>
      <pubDate>Tue, 13 Oct 2026 21:28:03 GMT</pubDate>
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      <title>CVE-2026-94453 · 7.5 HIGH 🌩️ — IKEv2 Use-After-Free bug when using IKE-over-TCP</title>
      <link>https://vulnogram.org/CVE-2026-94453</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-94453</guid>
      <description>Libreswan&apos;s pluto daemon has a use-after-free vulnerability when a client connecting using IKE over TCP closes the connection and another packet (retransmit or malicious) is received for the same tuple. IKE state is retained in memory after the clien…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Tue, 13 Oct 2026 21:27:43 GMT</pubDate>
    </item>
    <item>
      <title>CVE-2026-14957 · 7.5 HIGH 🌩️ — FIPS mode assertion failure via malicious CERT payload</title>
      <link>https://vulnogram.org/CVE-2026-14957</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-14957</guid>
      <description>In FIPS mode, Libreswan&apos;s add_decoded_cert() function calls CERT_ExtractPublicKey() and asserts that the result is not NULL. However, CERT_ExtractPublicKey() returns NULL when public key extraction fails, for example if the RSA exponent is set to 0.…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Wed, 02 Sep 2026 02:19:00 GMT</pubDate>
    </item>
    <item>
      <title>CVE-2026-50721 · 8.1 HIGH 🌩️ — IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload</title>
      <link>https://vulnogram.org/CVE-2026-50721</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-50721</guid>
      <description>Libreswan, via the function RSA_authenticate_hash_signature_raw_rsa(), did not correctly verify the length of the authentication hash when the SIG payload of an IKEv1 packet was encoded using PKCS #1 RSA Encryption as per RFC 2313. A remote attacker…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Thu, 02 Jul 2026 21:44:09 GMT</pubDate>
    </item>
    <item>
      <title>CVE-2026-50722 · 8.1 HIGH 🌩️ — IKEv2 Denial of Service via RSA-SHA1 (PKCS#1 RSASSA-PKCS1-v1_5) authentication payload</title>
      <link>https://vulnogram.org/CVE-2026-50722</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-50722</guid>
      <description>Libreswan, via the function RSA_authenticate_hash_signature_pkcs1_1_5_rsa(), did not correctly verify the DER encoding of the ASN.1 digest when the IKEv2 AUTH payload was encoded using RSASSA-PKCS1-v1_5 (RFC 8017). A remote attacker can use a variati…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Thu, 02 Jul 2026 21:34:41 GMT</pubDate>
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    <item>
      <title>CVE-2026-12413 · 7.5 HIGH 🌩️ — IKEv2 Denial of Service via malformed fragmentation</title>
      <link>https://vulnogram.org/CVE-2026-12413</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2026-12413</guid>
      <description>An invalidly formatted IKEv2 fragment causes the Libreswan pluto daemon to crash and restart. Continued exploitation would cause a denial of service. The function reassemble_v2_incoming_fragments() would ignore unknown outer payloads but still store…</description>
      <category>High</category>
      <category>Network Exploitable</category>
      <pubDate>Thu, 02 Jul 2026 21:19:22 GMT</pubDate>
    </item>
    <item>
      <title>CVE-2024-3652 · 6.5 MEDIUM — IKEv1 default AH/ESP responder can cause libreswan to abort and restart</title>
      <link>https://vulnogram.org/CVE-2024-3652</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2024-3652</guid>
      <description>The Libreswan Project was notified of an issue causing libreswan to restart when using IKEv1 without specifying an esp= line. When the peer requests AES-GMAC, libreswan&apos;s default proposal handler causes an assertion failure and crashes and restarts.…</description>
      <category>Medium</category>
      <pubDate>Thu, 11 Apr 2024 01:32:13 GMT</pubDate>
    </item>
    <item>
      <title>CVE-2024-2357 · 6.5 MEDIUM — IKEv2 misconfiguration can cause libreswan to abort and restart</title>
      <link>https://vulnogram.org/CVE-2024-2357</link>
      <guid isPermaLink="true">https://vulnogram.org/CVE-2024-2357</guid>
      <description>The Libreswan Project was notified of an issue causing libreswan to restart under some IKEv2 retransmit scenarios when a connection is configured to use PreSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When s…</description>
      <category>Medium</category>
      <pubDate>Mon, 11 Mar 2024 19:39:03 GMT</pubDate>
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