[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPg2eKJM6Un2NU5ubYnRKqTPPmD8Kco4bnR2E3J-dUHg":3},{"success":4,"data":5},true,{"vendor":6,"topVulnerabilitiesByEpss":19,"kevVulnerabilities":77,"topProductsByCves":78,"seoMetadata":80,"meta":89},{"vendorId":7,"vendorName":8,"productCount":9,"cveCount":10,"kevCount":11,"versionCount":12,"lastCveUpdate":13,"firstLetter":14,"products":15,"description":18},25928,"putty",1,32,0,40,"2024-04-15","p",[16],{"id":17,"product_name":8,"version_count":12,"cve_count":10,"kev_count":11,"last_cve_update":13},131299,"Putty is a technology vendor with 1 tracked product and 32 known security vulnerabilities. Get comprehensive security analysis, vulnerability tracking, and threat intelligence for this vendor.",[20,29,37,44,48,53,57,61,65,72],{"cveId":21,"description":22,"publishedDate":23,"cvssScore":24,"cvssVersion":25,"severity":26,"isKev":27,"epssScore":28},"CVE-2023-48795","The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang\u002FOTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org\u002Fx\u002Fcrypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.","2023-12-18",5.9,"v3.1","Medium",false,0.93547,{"cveId":30,"description":31,"publishedDate":32,"cvssScore":33,"cvssVersion":34,"severity":35,"isKev":27,"epssScore":36},"CVE-2002-1359","Multiple SSH2 servers and clients do not properly handle large packets or large fields, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code via buffer overflow attacks, as demonstrated by the SSHredder SSH protocol test suite.","2002-12-23",10,"v2","Critical",0.80233,{"cveId":38,"description":39,"publishedDate":40,"cvssScore":41,"cvssVersion":42,"severity":35,"isKev":27,"epssScore":43},"CVE-2017-6542","The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a buffer overflow.","2017-03-27",9.8,"v3.0",0.21816,{"cveId":45,"description":46,"publishedDate":32,"cvssScore":33,"cvssVersion":34,"severity":35,"isKev":27,"epssScore":47},"CVE-2002-1357","Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.",0.09767,{"cveId":49,"description":50,"publishedDate":51,"cvssScore":33,"cvssVersion":34,"severity":35,"isKev":27,"epssScore":52},"CVE-2004-1008","Integer signedness error in the ssh2_rdpkt function in PuTTY before 0.56 allows remote attackers to execute arbitrary code via a SSH2_MSG_DEBUG packet with a modified stringlen parameter, which leads to a buffer overflow.","2005-01-10",0.07363,{"cveId":54,"description":55,"publishedDate":32,"cvssScore":33,"cvssVersion":34,"severity":35,"isKev":27,"epssScore":56},"CVE-2002-1360","Multiple SSH2 servers and clients do not properly handle strings with null characters in them when the string length is specified by a length field, which could allow remote attackers to cause a denial of service or possibly execute arbitrary code due to interactions with the use of null-terminated strings as implemented using languages such as C, as demonstrated by the SSHredder SSH protocol test suite.",0.0614,{"cveId":58,"description":59,"publishedDate":32,"cvssScore":33,"cvssVersion":34,"severity":35,"isKev":27,"epssScore":60},"CVE-2002-1358","Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.",0.05838,{"cveId":62,"description":63,"publishedDate":13,"cvssScore":24,"cvssVersion":25,"severity":26,"isKev":27,"epssScore":64},"CVE-2024-31497","In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521 secret key via a quick attack in approximately 60 signatures. This is especially important in a scenario where an adversary is able to read messages signed by PuTTY or Pageant. The required set of signed messages may be publicly readable because they are stored in a public Git service that supports use of SSH for commit signing, and the signatures were made by Pageant through an agent-forwarding mechanism. In other words, an adversary may already have enough signature information to compromise a victim's private key, even if there is no further use of vulnerable PuTTY versions. After a key compromise, an adversary may be able to conduct supply-chain attacks on software maintained in Git. A second, independent scenario is that the adversary is an operator of an SSH server to which the victim authenticates (for remote login or file copy), even though this server is not fully trusted by the victim, and the victim uses the same private key for SSH connections to other services operated by other entities. Here, the rogue server operator (who would otherwise have no way to determine the victim's private key) can derive the victim's private key, and then use it for unauthorized access to those other services. If the other services include Git services, then again it may be possible to conduct supply-chain attacks on software maintained in Git. This also affects, for example, FileZilla before 3.67.0, WinSCP before 6.3.3, TortoiseGit before 2.15.0.1, and TortoiseSVN through 1.14.6.",0.05773,{"cveId":66,"description":67,"publishedDate":68,"cvssScore":69,"cvssVersion":34,"severity":70,"isKev":27,"epssScore":71},"CVE-2004-1440","Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow (1) remote attackers to execute arbitrary code via an SSH2 packet with a base argument that is larger than the mod argument, which causes the modpow function to write memory before the beginning of its buffer, and (2) remote malicious servers to cause a denial of service (client crash) and possibly execute arbitrary code via a large bignum during authentication.","2004-12-31",7.5,"High",0.04114,{"cveId":73,"description":74,"publishedDate":75,"cvssScore":41,"cvssVersion":42,"severity":35,"isKev":27,"epssScore":76},"CVE-2019-9898","Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.","2019-03-21",0.03937,[],[79],{"id":17,"product_name":8,"version_count":12,"cve_count":10,"kev_count":11,"last_cve_update":13},{"title":81,"metaDescription":82,"keywords":83,"structuredData":84},"Putty - Security Vulnerabilities & Analysis | Precursor Intelligence","Comprehensive security analysis for Putty covering 1 product with 32 tracked vulnerabilities. Real-time threat intelligence, CVE tracking, and security recommendations.","Putty vulnerabilities, Putty security, Putty CVE, Putty threat intelligence, vendor security analysis, cybersecurity threats, vulnerability management, CVE tracking",{"@context":85,"@type":86,"name":87,"description":82,"url":88},"https:\u002F\u002Fschema.org","Organization","Putty","https:\u002F\u002Fprecursorintelligence.com\u002Fvendors\u002Fputty",{"totalProducts":9,"totalVulnerabilities":10,"kevVulnerabilities":11,"lastUpdated":13,"generatedAt":90,"apiVersion":91},"2026-10-17T16:30:40.979Z","3.0"]