Case study: How predictive shielding in Defender stopped GPO-based ransomware before it started

In this article 1. The growing threat: GPO abuse in ransomware operations 2. The incident 3. The results 4. The hardening dilemma: Why threat actors love operational mechanisms 5. Predictive shielding: Contextual, just-in-time hardening 6. Closing the gap 7. References Summary Microsoft Defender...

Exploit for CVE-2024-51346

CVE-2024-51346: Cryptographic Bypass and Media Decryption in E...

JOSE Authlib OAuth OpenID Connect Auth Bypass

The vulnerability of the JOSE library Authlib implementation for OAuth and OpenID Connect servers is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service failures...

Towards Secure Retrieval-Augmented Generation: A Comprehensive Review of Threats, Defenses and Benchmarks

Retrieval-Augmented Generation RAG significantly mitigates the hallucinations and domain knowledge deficiency in large language models by incorporating external knowledge bases. However, the multi-module architecture of RAG introduces complex system-level security vulnerabilities. Guided by the R...

CVE-2026-33488: Inadequate Encryption Strength

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the createKeys function in the LoginControl plugin's PGP 2FA system generates 512-bit RSA keys, which have been publicly factorable since 1999. An attacker who obtains a target user's public key can factor the...

WWBN AVideo 加密问题漏洞

WWBN AVideo is a video platform building system written in PHP, developed by the WWBN team. Versions of WWBN AVideo prior to 26.0 contained vulnerabilities related to encryption. These vulnerabilities stemmed from the lack of authentication during the decryptString operation, which could lead to...

WWBN AVideo 加密问题漏洞

WWBN AVideo is a video platform building system developed by the WWBN team using PHP. Versions of WWBN AVideo prior to 26.0 contained vulnerabilities related to encryption. These vulnerabilities stemmed from the use of weak RSA keys and the lack of authentication at the endpoint, which could lead...

AWS VDP: Encryption context keys and values logged at INFO level

Component: cmd/server/main.go:101-106 Affected Version: aws-encryption-provider @ 4341c70 all versions Found by: Source audit TLP: TLP:Amber --- Summary The server startup code logs all encryption context key-value pairs at INFO level. Encryption context is metadata associated with KMS operations...

AWS VDP: V2Plugin.Decrypt panics on empty ciphertext (Remote DoS)

A vulnerability was discovered in the "aws-encryption-provider" component where the "V2Plugin.Decrypt" function accessed the ciphertext slice without checking if it was empty, leading to a panic and crashing the entire gRPC server process...

AWS VDP: V1Plugin.Decrypt panics on empty ciphertext (Remote DoS)

A vulnerability was discovered in the aws-encryption-provider component of the pkg/plugin/plugin.go file at revision 4341c70. The vulnerability caused the V1Plugin.Decrypt function to panic when passed an empty ciphertext, crashing the entire gRPC server process. This was due to the function...

CVE-2019-25549

VeryPDF PCL Converter 2.7 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long password string. Attackers can trigger a buffer overflow by entering a 3000-byte password in the PDF Security encryption fields, causing the...

CVE-2019-25549

VeryPDF PCL Converter 2.7 has a denial-of-service vulnerability: a local attacker can crash the application by supplying an excessively long password in PDF Security, triggering a buffer overflow when processing PCL files (reported with a ~3000-byte password). The CVSS data indicate local access,...

CVE-2019-25549: Out-of-bounds Write

VeryPDF PCL Converter 2.7 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long password string. Attackers can trigger a buffer overflow by entering a 3000-byte password in the PDF Security encryption fields, causing the...

PT-2026-26895

Encrypt PDF 2.3 contains a buffer overflow vulnerability that allows local attackers to crash the application by inputting excessively long strings into password fields. Attackers can paste a 1000-byte buffer into the User Password or Master Password field in the Settings dialog to trigger an...

CVE-2026-33204

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...

CVE-2026-33204 SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...

CVE-2026-33204 SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...

CVE-2026-33204

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...

CVE-2026-33204

CVE-2026-33204 affects the PHP library SimpleJWT prior to v1.1.1. An unauthenticated attacker can trigger a Denial of Service by tampering JWE headers when PBES2 algorithms are used, causing excessive PBKDF2 iterations during JWE::decrypt() on attacker-controlled JWEs. The issue is fixed in v1.1....

CVE-2026-33204 SimpleJWT has an Unauthenticated Denial of Service via JWE header tampering

SimpleJWT is a simple JSON web token library written in PHP. Prior to version 1.1.1, an unauthenticated attacker can perform a Denial of Service via JWE header tampering when PBES2 algorithms are used. Applications that call JWE::decrypt on attacker-controlled JWEs using PBES2 algorithms are...