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CWE-248 (未捕获的异常) — Vulnerability Class 230

230 vulnerabilities classified as CWE-248 (未捕获的异常). AI Chinese analysis included.

CWE-248, Uncaught Exception, represents a critical software weakness where a function throws an error that the calling code fails to handle. This oversight typically allows attackers to exploit the vulnerability by triggering specific conditions that force the application to crash, resulting in a denial of service. Alternatively, the unhandled exception may cause the system to dump detailed stack traces or internal state information to the user interface, inadvertently exposing sensitive data such as database credentials or server architecture. To mitigate this risk, developers must implement robust error handling mechanisms, ensuring that all potential exceptions are explicitly caught and managed. By using try-catch blocks and providing generic, non-revealing error messages, programmers can maintain application stability and prevent information leakage, thereby securing the software against both availability attacks and data exposure.

MITRE CWE Description
An exception is thrown from a function, but it is not caught. When an exception is not caught, it may cause the program to crash or expose sensitive information.
Common Consequences (1)
Availability, Confidentiality DoS: Crash, Exit, or Restart, Read Application Data
An uncaught exception could cause the system to be placed in a state that could lead to a crash, exposure of sensitive information or other unintended behaviors.
Examples (2)
The following example attempts to resolve a hostname.
protected void doPost (HttpServletRequest req, HttpServletResponse res) throws IOException { String ip = req.getRemoteAddr(); InetAddress addr = InetAddress.getByName(ip); ... out.println("hello " + addr.getHostName()); }
Bad · Java
The _alloca() function allocates memory on the stack. If an allocation request is too large for the available stack space, _alloca() throws an exception. If the exception is not caught, the program will crash, potentially enabling a denial of service attack. _alloca() has been deprecated as of Microsoft Visual Studio 2005(R). It has been replaced with the more secure _alloca_s().
CVE ID Title CVSS Severity Published
CVE-2026-2229 undici is vulnerable to Unhandled Exception in undici WebSocket Client Due to Invalid server_max_window_bits Validation — undici 7.5 High 2026-03-12
CVE-2026-1528 undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client — undici 7.5 High 2026-03-12
CVE-2026-31870 cpp-httplib Affected by Remote Process Crash via Malformed Content-Length Response Header — cpp-httplib 7.5 High 2026-03-11
CVE-2026-31812 Quinn affected by unauthenticated remote DoS via panic in QUIC transport parameter parsing — quinn 8.7 High 2026-03-10
CVE-2026-20068 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability — Cisco Cyber Vision 5.8 Medium 2026-03-04
CVE-2026-20031 ClamAV CSS Image Parsing Error Handling Denial of Service Vulnerability — Cisco Secure Endpoint 5.3 Medium 2026-03-04
CVE-2026-27631 Exiv2: Uncaught exception - cannot create std::vector larger than max_size() — exiv2 5.5AI Medium AI 2026-03-02
CVE-2026-1507 Uncaught Exception vulnerability in AVEVA PI Data Archive — PI Data Archive PI Server 7.5 High 2026-02-10
CVE-2026-25577 Emmett has an Unhandled CookieError Exception Causing Denial of Service — core 7.5 High 2026-02-10
CVE-2025-13064 AXIS Camera Station Pro 安全漏洞 — AXIS Camera Station Pro 4.5 Medium 2026-02-10
CVE-2025-67647 SvelteKit Denial of service and possible SSRF when using prerendering — kit 7.5AI High AI 2026-01-15
CVE-2025-66578 robrichards/xmlseclibs has an Libxml2 Canonicalization error which can bypass Digest/Signature validation — xmlseclibs 6.0 Medium 2025-12-09
CVE-2025-20758 MediaTek Chipsets 安全漏洞 — MT2735, MT2737, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8673, MT8675, MT8676, MT8678, MT8755, MT8771, MT8791, MT8791T, MT8792, MT8793, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 7.5AI High AI 2025-12-02
CVE-2025-20754 MediaTek Chipsets 安全漏洞 — MT2735, MT2737, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8673, MT8675, MT8676, MT8678, MT8755, MT8771, MT8791, MT8791T, MT8792, MT8793, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 7.5AI High AI 2025-12-02
CVE-2025-20753 MediaTek Chipsets 安全漏洞 — MT2735, MT2737, MT6833, MT6833P, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT8675, MT8771, MT8791, MT8791T, MT8797 7.5AI High AI 2025-12-02
CVE-2025-66305 Grav vulnerable to Denial of Service via Improper Input Handling in 'Supported' Parameter — grav 4.9AI Medium AI 2025-12-01
CVE-2025-8870 On affected platforms running Arista EOS, certain serial console input might result in an unexpected reload of the device. — EOS 4.9 Medium 2025-11-14
CVE-2025-12423 Denial of Service - Protocol Manipulation — BLU-IC2 7.5AI High AI 2025-10-28
CVE-2025-59462 Denial-of-service (DoS) via delayed or missing client response — TLOC100-100 all Firmware versions 6.5 Medium 2025-10-27
CVE-2025-48430 Gallagher Command Centre Server 安全漏洞 — Command Centre Server 5.5 Medium 2025-10-23
CVE-2025-62370 Alloy Core has a DoS vulnerability on `alloy_dyn_abi::TypedData` hashing — core 7.5 High 2025-10-15
CVE-2025-59229 Microsoft Office Denial of Service Vulnerability — Microsoft 365 Apps for Enterprise 5.5 Medium 2025-10-14
CVE-2025-9124 Rockwell Automation Compact GuardLogix® 5370 Denial-Of-Service Vulnerability — Compact GuardLogix® 5370 7.5AI High AI 2025-10-14
CVE-2025-59538 Argo CD is Vulnerable to Unauthenticated Remote DoS via malformed Azure DevOps git.push webhook — argo-cd 7.5 High 2025-10-01
CVE-2025-35436 CISA Thorium account verification email error handling — Thorium 5.3 Medium 2025-09-17
CVE-2025-59014 Denial of Service in TYPO3 Bookmark Toolbar — TYPO3 CMS 4.9AI Medium AI 2025-09-09
CVE-2025-54777 Konica Minolta bizhub 安全漏洞 — Multiple products in bizhub series 7.5 - 2025-08-29
CVE-2025-55194 Part-DB Persistent Denial of Service via Uncaught Exception from Misleading File Extension in Avatar Upload — Part-DB-server 5.7 Medium 2025-08-13
CVE-2013-10065 Sysax Multi-Server <= 6.10 SSHD Key Exchange DoS — Multi-Server 7.5AI High AI 2025-08-05
CVE-2025-7338 Multer vulnerable to Denial of Service via unhandled exception from malformed request — multer 7.5 High 2025-07-17

Vulnerabilities classified as CWE-248 (未捕获的异常) represent 230 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.