CVE-2026-73252— Mongoose: Unauthenticated remote heap out-of-bounds read in built-in TLS: off-by-one length check in mg_tls_recv_record() underflows recv_len to SIZE_MAX
一分钟漏洞结论
影响对象
cesanta mongoose
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS stack selected by MG_TLS_BUILTIN in src/tls_builtin.c accepts a TLS 1.3 record whose decrypted size is exactly the 16-byte authentication tag with no plaintext or ContentTy
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2026-73252 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Mongoose: Unauthenticated remote heap out-of-bounds read in built-in TLS: off-by-one length check in mg_tls_recv_record() underflows recv_len to SIZE_MAX
来源: CVE Program / CVE List V5
Vulnerability Description
Mongoose is an embedded web server and network library. Prior to 7.23, the built-in TLS stack selected by MG_TLS_BUILTIN in src/tls_builtin.c accepts a TLS 1.3 record whose decrypted size is exactly the 16-byte authentication tag with no plaintext or ContentType byte. In mg_tls_recv_record(), the msgsz length check permits that record and the recv_len calculation underflows to SIZE_MAX, so a later handshake step treats stale buffer contents as a trusted message with an effectively unbounded length. An unauthenticated malicious TLS peer can trigger a heap out-of-bounds read before certificate or Finished validation, causing a remote denial of service. This issue is fixed in version 7.23.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
来源: CVE Program / CVE List V5
受影响产品
二、漏洞 CVE-2026-73252 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2026-73252 的情报信息
请登录查看更多情报信息。
CVE-2026-73252 厂商页面 (1)
-
🔗 Release Mongoose 7.23 · cesanta/mongoose · GitHub x_refsource_MISC
CVE-2026-73252 其他参考 (2)
-
https://github.com/cesanta/mongoose/security/advisories/GHSA-hq58-98f5-2wg3 x_refsource_CONFIRM
同批安全公告 · cesanta · 2026-10-14 · 共 4 条
| CVE-2026-63626 | 8.8 HIGH | Mongoose: ppp_handle_ipv6cp() uses attacker-controlled length without bounds check — OOB r |
| CVE-2026-73261 | 7.5 HIGH | Mongoose: handle_opt() missing opts[1] > len check — 1-byte OOB read corrupts TCP MSS, sil |
| CVE-2026-73260 | 7.5 HIGH | Mongoose: Out-of-bounds Read via length-counter underflow in built-in TLS X.509 DER parser |
IV. Related Vulnerabilities
Same product: mongoose
-
CVE-2026-63626
Mongoose: ppp_handle_ipv6cp() uses attacker-controlled lengt -
CVE-2026-73261
Mongoose: handle_opt() missing opts[1] > len check — 1-byte -
CVE-2026-73260
Mongoose: Out-of-bounds Read via length-counter underflow in -
CVE-2026-101003
Cesanta Mongoose MQTT Broker 栈溢出漏洞 -
CVE-2026-73253
Cesanta Mongoose 加密问题漏洞
Same vendor: cesanta
-
CVE-2026-63626
Mongoose: ppp_handle_ipv6cp() uses attacker-controlled lengt -
CVE-2026-73261
Mongoose: handle_opt() missing opts[1] > len check — 1-byte -
CVE-2026-73260
Mongoose: Out-of-bounds Read via length-counter underflow in -
CVE-2026-101003
Cesanta Mongoose MQTT Broker 栈溢出漏洞 -
CVE-2026-86716
Cesanta mJS 缓冲区错误漏洞
Same weakness: CWE-191
-
CVE-2026-86566
Dpdk: dpdk: guest with runt rx descriptors underflows copy l -
CVE-2026-75083
Integer underflow of the radio-reported frame length causes -
CVE-2026-101968
Junos OS and Junos OS Evolved: EX Series, MX Series, ACX Ser -
CVE-2026-101938
Junos OS and Junos OS Evolved: SRX Series: An attacker cause -
CVE-2026-101980
Junos OS: Malformed Extended Echo requests cause a Routing E
V. Comments for CVE-2026-73252
暂无评论