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Snyk
Snyk
•added 2026/07/24 6:40 p.m.•20 views

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the fullpacket function during Encrypt-then-MAC cipher negotiation. An attacker can corrupt heap metadata and potentially achieve arbitrary code execution or cause a denial of service by sending a specially...

7.7CVSS7.8AI score0.00551EPSS
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OSV
OSV
•added 2026/07/24 5:17 p.m.•18 views

AZL-93399 CVE-2026-66035 affecting package libssh2 for versions less than 1.11.1-5

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
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UbuntuCve
UbuntuCve
•added 2026/07/24 5:17 p.m.•17 views

CVE-2026-66035

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References4
OSV
OSV
•added 2026/07/24 5:17 p.m.•18 views

UBUNTU-CVE-2026-66035

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References5
CVE
CVE
•added 2026/07/24 4:45 p.m.•131 views

CVE-2026-66035

CVE-2026-66035 affects libssh2 up to 1.11.1 and was fixed in commit 42e33d8. The vulnerability is a pre-authentication heap buffer overflow in the Encrypt-then-MAC (ETM) cipher negotiation path. In libssh2’s fullpacket() implemented under src/transport.c, the ETM code path allocates a buffer of p...

7.7CVSS7.4AI score0.00551EPSS
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EUVD
EUVD
•added 2026/07/24 4:45 p.m.•24 views

EUVD-2026-48722

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References3
OSV
OSV
•added 2026/07/24 4:45 p.m.•49 views

CVE-2026-66035 libssh2 Heap Buffer Overflow via ETM Cipher Negotiation

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS6.2AI score
SaveExploits0References6
Cvelist
Cvelist
•added 2026/07/24 4:45 p.m.•78 views

CVE-2026-66035 libssh2 Heap Buffer Overflow via ETM Cipher Negotiation

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS0.00551EPSS
SaveExploits0References3
Vulnrichment
Vulnrichment
•added 2026/07/24 4:45 p.m.•29 views

CVE-2026-66035 libssh2 Heap Buffer Overflow via ETM Cipher Negotiation

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References3
attackerkb
attackerkb
•added 2026/07/24 4:45 p.m.•18 views

CVE-2026-66035

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References4
AlpineLinux
AlpineLinux
•added 2026/07/24 4:45 p.m.•21 views

CVE-2026-66035

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References3
Positive Technologies
Positive Technologies
•added 2026/07/24 12:00 a.m.•31 views

PT-2026-64382

Name of the Vulnerable Software and Affected Versions libssh2 versions prior to 1.11.1 Description A pre-authentication heap buffer overflow occurs during Encrypt-then-MAC ETM cipher negotiation. A malicious SSH server can corrupt heap metadata in a connecting client by sending a packet where the...

8.8CVSS7.1AI score0.00695EPSS
SaveExploits0References79
Rapid7 Vulnerability Database (full)
Rapid7 Vulnerability Database (full)
•added 2026/07/24 12:00 a.m.•3 views

CVE-2026-66035: Heap-based Buffer Overflow

libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packetlength smaller than the cipher's block size during Encrypt-then-M...

7.7CVSS7.4AI score0.00551EPSS
SaveExploits0References5
Tenable Nessus
Tenable Nessus
•added 2026/07/24 12:00 a.m.•17 views

Oracle Linux 10 : tomcat9 (ELSA-2026-25341)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-25341 advisory. - Resolves: RHEL-150720 Tomcat: Certificate revocation bypass due to improper OCSP response validation CVE-2026-24734 - Resolves: Tomcat: OCSP checks sometime...

9.1CVSS6.8AI score0.06561EPSS
SaveExploits11References2
OSSF Malicious Packages
OSSF Malicious Packages
•added 2026/07/22 8:39 p.m.•32 views

Malicious code in encrypt-string-ttak (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector cf72c81030b9346ff3d3dd6f2e5f3395a61d433def25e5e2ea2a7e52a6051999 The package is published as a UniApp 'encryptString' helper but its single shipped module dist/encrypt-string.js is heavily obfuscated obfuscator.io...

5.6AI score
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OSV
OSV
•added 2026/07/22 8:39 p.m.•16 views

MAL-2026-11011 Malicious code in encrypt-string-ttak (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector cf72c81030b9346ff3d3dd6f2e5f3395a61d433def25e5e2ea2a7e52a6051999 The package is published as a UniApp 'encryptString' helper but its single shipped module dist/encrypt-string.js is heavily obfuscated obfuscator.io...

5.6AI score
SaveExploits0References4
Tenable Nessus
Tenable Nessus
•added 2026/07/21 12:00 a.m.•19 views

Oracle Linux 10 : tomcat9 (ELSA-2026-36790)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-36790 advisory. - Resolves: RHEL-150720 Tomcat: Certificate revocation bypass due to improper OCSP response validation CVE-2026-24734 - Resolves: Tomcat: OCSP checks...

9.1CVSS6.8AI score0.06561EPSS
SaveExploits11References3
Mageia
Mageia
•added 2026/07/20 7:06 p.m.•20 views

Updated php8.4 and php8.5 packages fix security vulnerabilities

The updated php8.4 and php8.5 packages fix several security issues, e.g. Memory corruption zendmmheap corrupted in opensslencrypt with AES-WRAP-PAD. CVE-2026-14355...

5.6CVSS6.3AI score0.00279EPSS
SaveExploits0References3
OSV
OSV
•added 2026/07/20 7:06 p.m.•21 views

MGASA-2026-0274 Updated php packages fix a security vulnerability

The updated php packages fix a security issue: Memory corruption zendmmheap corrupted in opensslencrypt with AES-WRAP-PAD. CVE-2026-14355...

5.6CVSS6.3AI score0.00279EPSS
SaveExploits0References3
Mageia
Mageia
•added 2026/07/20 7:06 p.m.•19 views

Updated php packages fix a security vulnerability

The updated php packages fix a security issue: Memory corruption zendmmheap corrupted in opensslencrypt with AES-WRAP-PAD. CVE-2026-14355...

5.6CVSS6.3AI score0.00279EPSS
SaveExploits0References2
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