sendmail 関連製品全体の CVE とセキュリティ脆弱性情報を集約し、CVSS、EPSS、公開日、脆弱性情報データを掲載しています。
過去の問題は主に バッファオーバーフロー and パス処理の欠陥 などに関し、一部は vendor impact unexpected behavior を招き、vendor surface software deployment and vendor surface production workloads 関連の場面に影響します。
掲載データは公開脆弱性情報とセキュリティ公告に基づき、過去の暴露面と修補優先度の評価に利用できます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2023-51765 | sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features. | [email protected] | 5.3 | 0.84% | 2023-12-24 | 2024-11-21 |
| CVE-2021-3618 | ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise t | [email protected] | 7.4 | 0.61% | 2022-03-23 | 2024-11-21 |
| CVE-2014-3956 | The sm_close_on_exec function in conf.c in sendmail before 8.14.9 has arguments in the wrong order, and consequently skips setting expected FD_CLOEXEC flags, which allows local users to access unintended high-numbered file descriptors via a custom mail-delivery program. | [email protected] | 1.9 | 0.13% | 2014-06-04 | 2026-05-06 |
| CVE-2009-4565 | sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. | [email protected] | 7.5 | 0.77% | 2010-01-04 | 2026-04-23 |
| CVE-2009-1490 | Heap-based buffer overflow in Sendmail before 8.13.2 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via a long X- header, as demonstrated by an X-Testing header. | [email protected] | 5.0 | 7.79% | 2009-05-05 | 2026-04-23 |
| CVE-2007-2246 | Unspecified vulnerability in HP-UX B.11.00 and B.11.11, when running sendmail 8.9.3 or 8.11.1; and HP-UX B.11.23 when running sendmail 8.11.1; allows remote attackers to cause a denial of service via unknown attack vectors. NOTE: due to the lack of details from HP, it is not known whether this issue is a duplicate of another CVE such as CVE-2006-1173 or CVE-2006-4434. | [email protected] | 7.8 | 2.60% | 2007-04-25 | 2026-04-23 |
| CVE-2006-7176 | The version of Sendmail 8.13.1-2 on Red Hat Enterprise Linux 4 Update 4 and earlier does not reject the "localhost.localdomain" domain name for e-mail messages that come from external hosts, which might allow remote attackers to spoof messages. | [email protected] | 4.3 | 0.76% | 2007-03-27 | 2026-04-23 |
| CVE-2006-7175 | The version of Sendmail 8.13.1-2 on Red Hat Enterprise Linux 4 Update 4 and earlier does not allow the administrator to disable SSLv2 encryption, which could cause less secure channels to be used than desired. | [email protected] | 7.5 | 0.16% | 2007-03-27 | 2026-04-23 |
| CVE-2006-4434 | Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads direct | [email protected] | 7.5 | 7.03% | 2006-08-29 | 2026-04-16 |
| CVE-2006-1173 | Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and might lead to disk consumption by core dump files. | [email protected] | 5.0 | 21.46% | 2006-06-07 | 2026-04-16 |
| CVE-2006-0058 | Signal handler race condition in Sendmail 8.13.x before 8.13.6 allows remote attackers to execute arbitrary code by triggering timeouts in a way that causes the setjmp and longjmp function calls to be interrupted and modify unexpected memory locations. | [email protected] | 7.6 | 58.99% | 2006-03-22 | 2026-04-16 |
| CVE-2005-2070 | The ClamAV Mail fILTER (clamav-milter) 0.84 through 0.85d, when used in Sendmail using long timeouts, allows remote attackers to cause a denial of service by keeping an open connection, which prevents ClamAV from reloading. | [email protected] | 5.0 | 0.95% | 2005-06-29 | 2026-04-16 |
| CVE-2003-0688 | The DNS map code in Sendmail 8.12.8 and earlier, when using the "enhdnsbl" feature, does not properly initialize certain data structures, which allows remote attackers to cause a denial of service (process crash) via an invalid DNS response that causes Sendmail to free incorrect data. | [email protected] | 5.0 | 1.71% | 2003-10-20 | 2026-04-16 |
| CVE-2003-0694 | The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c. | [email protected] | 10.0 | 76.08% | 2003-10-06 | 2026-04-16 |
| CVE-2003-0681 | A "potential buffer overflow in ruleset parsing" for Sendmail 8.12.9, when using the nonstandard rulesets (1) recipient (2), final, or (3) mailer-specific envelope recipients, has unknown consequences. | [email protected] | 7.5 | 12.44% | 2003-10-06 | 2026-04-16 |
| CVE-2003-0308 | The Sendmail 8.12.3 package in Debian GNU/Linux 3.0 does not securely create temporary files, which could allow local users to gain additional privileges via (1) expn, (2) checksendmail, or (3) doublebounce.pl. | [email protected] | 7.2 | 0.06% | 2003-05-15 | 2026-04-16 |
| CVE-2003-0161 | The prescan() function in the address parser (parseaddr.c) in Sendmail before 8.12.9 does not properly handle certain conversions from char and int types, which can cause a length check to be disabled when Sendmail misinterprets an input value as a special "NOCHAR" control value, allowing attackers to cause a denial of service and possibly execute arbitrary code via a buffer overflow attack using messages, a different vulnerability than CVE-2002-1337. | [email protected] | 10.0 | 60.09% | 2003-04-02 | 2026-04-16 |
| CVE-2002-1337 | Buffer overflow in Sendmail 5.79 to 8.12.7 allows remote attackers to execute arbitrary code via certain formatted address fields, related to sender and recipient header comments as processed by the crackaddr function of headers.c. | [email protected] | 10.0 | 42.75% | 2003-03-07 | 2026-04-16 |
| CVE-2002-2423 | Sendmail 8.12.0 through 8.12.6 truncates log messages longer than 100 characters, which allows remote attackers to prevent the IP address from being logged via a long IDENT response. | [email protected] | 6.4 | 0.27% | 2002-12-31 | 2026-04-16 |
| CVE-2002-2261 | Sendmail 8.9.0 through 8.12.6 allows remote attackers to bypass relaying restrictions enforced by the 'check_relay' function by spoofing a blank DNS hostname. | [email protected] | 7.5 | 0.56% | 2002-12-31 | 2026-04-16 |