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Integer overflow in libxml2's xmlURIEscapeStr function (uri.c) before version 2.15.4 creates a heap memory corruption primitive with potential arbitrary read/write impact. When processing a URI string whose computed escape-output length wraps to zero via arithmetic overflow, the function proceeds with a corrupted buffer size, enabling writes beyond the allocated region. Fixed in v2.15.4 via commit 8edbbdb09f24d26a2f900141fddc2b9d014f53b0; no public exploit code or CISA KEV listing identified at time of analysis.
Heap-based buffer overflow in libxml2 before 2.15.4 allows an attacker who can supply maliciously crafted XML with oversized namespace-qualified names to corrupt heap memory within any application linking against the library, potentially enabling code execution or sensitive memory disclosure. The root cause is an integer overflow in xmlDictAddQString (dict.c) during dictionary string-pool growth, where unchecked multiplication and addition of the buffer size and string lengths could wrap around, producing an undersized heap allocation subsequently overwritten with full-length data. No public exploit code or CISA KEV listing is present at time of analysis, though the pervasive embedding of libxml2 across OS stacks, language runtimes, and application middleware substantially widens the potential attack surface.
Integer overflow in IBM i versions 7.3 through 7.6 allows remote authenticated attackers to cause a denial of service condition. The vulnerability (CWE-190) is network-reachable but requires prior authentication, and its impact is limited to partial availability degradation with no confidentiality or integrity consequences. IBM has released a patch, and no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer overflow in Corosync's membership commit token processing crashes the daemon on 32-bit cluster nodes, enabling a denial-of-service attack from any adjacent network host. The CWE-190 flaw causes the length validation to be bypassed on 32-bit systems where arithmetic wraps before the bounds check is applied, resulting in an out-of-bounds memory access that kills the Corosync process. Modern 64-bit deployments of the same packages are explicitly not affected, substantially narrowing real-world exposure despite the CVSS 6.5 rating; no public exploit code or CISA KEV listing exists at time of analysis.
Out-of-bounds write in MOOS-IvP through 24.8.1 allows remote attackers to corrupt memory and potentially execute code by supplying a crafted encoded BHV_IPF payload. The StringToIvPFunction() decoder reads dimension, piece, and degree counts directly from the payload and uses them as allocation sizes and loop bounds without any ceiling check, so mismatched dimension values let an attacker write attacker-controlled doubles past the end of the IvPBox weight array. A vendor patch exists (PR #126); no public exploit and no CISA KEV listing have been identified at time of analysis.
Integer overflow in Signum Node's block processing engine prior to v3.9.9 allows a malicious miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The flaw exists in BlockServiceImpl.applyBlock() and was introduced when the SMART_FEES hardfork (at block ~1,029,000) added fee cash-back and burn accounting logic without overflow guards. No public exploit code has been identified at time of analysis, but the attack is technically feasible for any active network participant with mining capability.
Integer wraparound in the MongoDB C Driver BSON library's JSON parser allows an unauthenticated party supplying a sufficiently large JSON document to crash any linked application on 32-bit-size builds. The overflow produces an undersized heap allocation that is freed, while a subsequent copy operation continues writing through the now-dangling pointer - a use-after-free sequence that terminates the host process. No public exploit code or active exploitation has been identified; impact is confined to denial of service, and the attack is constrained to 32-bit size builds of the library.
The BEAM runtime in Erlang/OTP crashes when a remote attacker sends a crafted packet to any exposed TCP port using the inet driver with {packet,4} framing, exploiting a signed integer overflow in packet length calculation inside packet_parser.c and inet_drv.c. Affected deployments span OTP release lines 17 through 29, with vendor-released patches available (27.3.4.17, 28.5.0.6, and 29.0.6); no active exploitation is confirmed in CISA KEV and no public exploit code has been identified at time of analysis. The vendor explicitly characterizes remote code execution as 'extremely unfeasible,' making denial-of-service via VM crash the realistic worst-case impact.
Remote denial-of-service in Rockwell Automation RSLinx Classic allows an unauthenticated network attacker to crash the RSLinx Classic service by sending a single crafted CIP (Common Industrial Protocol) packet, after which the service must be manually restarted to restore communications. The flaw is rooted in an integer-overflow (CWE-190) style mishandling of a malformed packet and carries a CVSS 4.0 base score of 9.2 driven by high availability impact on both the service and dependent systems. No public exploit has been identified at time of analysis, and the issue is not listed in CISA KEV.
Memory corruption in the Graphics: ImageLib component of Mozilla Firefox stems from an integer overflow when handling image data, potentially allowing remote attackers to corrupt heap memory and achieve code execution when a victim renders malicious image content. Mozilla fixed the issue in Firefox 155 and Firefox ESR 153.2 (advisories mfsa2026-82/85/86/88). It carries a critical 9.8 CVSS score, but EPSS is only 0.14% (4th percentile), it is not in CISA KEV, and no public exploit was identified at time of analysis.
Integer overflow in libxml2's xmlURIEscapeStr function (uri.c) before version 2.15.4 creates a heap memory corruption primitive with potential arbitrary read/write impact. When processing a URI string whose computed escape-output length wraps to zero via arithmetic overflow, the function proceeds with a corrupted buffer size, enabling writes beyond the allocated region. Fixed in v2.15.4 via commit 8edbbdb09f24d26a2f900141fddc2b9d014f53b0; no public exploit code or CISA KEV listing identified at time of analysis.
Heap-based buffer overflow in libxml2 before 2.15.4 allows an attacker who can supply maliciously crafted XML with oversized namespace-qualified names to corrupt heap memory within any application linking against the library, potentially enabling code execution or sensitive memory disclosure. The root cause is an integer overflow in xmlDictAddQString (dict.c) during dictionary string-pool growth, where unchecked multiplication and addition of the buffer size and string lengths could wrap around, producing an undersized heap allocation subsequently overwritten with full-length data. No public exploit code or CISA KEV listing is present at time of analysis, though the pervasive embedding of libxml2 across OS stacks, language runtimes, and application middleware substantially widens the potential attack surface.
Integer overflow in IBM i versions 7.3 through 7.6 allows remote authenticated attackers to cause a denial of service condition. The vulnerability (CWE-190) is network-reachable but requires prior authentication, and its impact is limited to partial availability degradation with no confidentiality or integrity consequences. IBM has released a patch, and no public exploit code or CISA KEV listing has been identified at time of analysis.
Integer overflow in Corosync's membership commit token processing crashes the daemon on 32-bit cluster nodes, enabling a denial-of-service attack from any adjacent network host. The CWE-190 flaw causes the length validation to be bypassed on 32-bit systems where arithmetic wraps before the bounds check is applied, resulting in an out-of-bounds memory access that kills the Corosync process. Modern 64-bit deployments of the same packages are explicitly not affected, substantially narrowing real-world exposure despite the CVSS 6.5 rating; no public exploit code or CISA KEV listing exists at time of analysis.
Out-of-bounds write in MOOS-IvP through 24.8.1 allows remote attackers to corrupt memory and potentially execute code by supplying a crafted encoded BHV_IPF payload. The StringToIvPFunction() decoder reads dimension, piece, and degree counts directly from the payload and uses them as allocation sizes and loop bounds without any ceiling check, so mismatched dimension values let an attacker write attacker-controlled doubles past the end of the IvPBox weight array. A vendor patch exists (PR #126); no public exploit and no CISA KEV listing have been identified at time of analysis.
Integer overflow in Signum Node's block processing engine prior to v3.9.9 allows a malicious miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The flaw exists in BlockServiceImpl.applyBlock() and was introduced when the SMART_FEES hardfork (at block ~1,029,000) added fee cash-back and burn accounting logic without overflow guards. No public exploit code has been identified at time of analysis, but the attack is technically feasible for any active network participant with mining capability.
Integer wraparound in the MongoDB C Driver BSON library's JSON parser allows an unauthenticated party supplying a sufficiently large JSON document to crash any linked application on 32-bit-size builds. The overflow produces an undersized heap allocation that is freed, while a subsequent copy operation continues writing through the now-dangling pointer - a use-after-free sequence that terminates the host process. No public exploit code or active exploitation has been identified; impact is confined to denial of service, and the attack is constrained to 32-bit size builds of the library.
The BEAM runtime in Erlang/OTP crashes when a remote attacker sends a crafted packet to any exposed TCP port using the inet driver with {packet,4} framing, exploiting a signed integer overflow in packet length calculation inside packet_parser.c and inet_drv.c. Affected deployments span OTP release lines 17 through 29, with vendor-released patches available (27.3.4.17, 28.5.0.6, and 29.0.6); no active exploitation is confirmed in CISA KEV and no public exploit code has been identified at time of analysis. The vendor explicitly characterizes remote code execution as 'extremely unfeasible,' making denial-of-service via VM crash the realistic worst-case impact.
Remote denial-of-service in Rockwell Automation RSLinx Classic allows an unauthenticated network attacker to crash the RSLinx Classic service by sending a single crafted CIP (Common Industrial Protocol) packet, after which the service must be manually restarted to restore communications. The flaw is rooted in an integer-overflow (CWE-190) style mishandling of a malformed packet and carries a CVSS 4.0 base score of 9.2 driven by high availability impact on both the service and dependent systems. No public exploit has been identified at time of analysis, and the issue is not listed in CISA KEV.
Memory corruption in the Graphics: ImageLib component of Mozilla Firefox stems from an integer overflow when handling image data, potentially allowing remote attackers to corrupt heap memory and achieve code execution when a victim renders malicious image content. Mozilla fixed the issue in Firefox 155 and Firefox ESR 153.2 (advisories mfsa2026-82/85/86/88). It carries a critical 9.8 CVSS score, but EPSS is only 0.14% (4th percentile), it is not in CISA KEV, and no public exploit was identified at time of analysis.