Tuesday, August 11, 2026
LIVEThe Unrelenting Cyber Battle: Hacking Threats and the Imperative of Robust Data Protection///Navigating the Cyber Labyrinth: Bolstering Defenses Against Evolving Hacking Threats///The Dual Front War: Battling Hacking and Bolstering Data Protection in the Digital Age///The Ever-Evolving Cyber Threat Landscape: Navigating Hacking and Fortifying Data Protection///The Unseen Battle: Fortifying Data in an Age of Relentless Hacking///The Unseen War: Hacking's Relentless Advance and the Imperative of Data Protection///The Evolving Threat Landscape: Hacking, Data Protection, and the Imperative for Proactive Security///Navigating the Digital Minefield: Bolstering Data Protection in an Era of Relentless Hacking///The Dual Fronts of Digital Defense: Combating Hacking and Fortifying Data Protection///Hacking's New Frontier: Fortifying Data Protection in the Age of Advanced Cyber Threats///The Dual Front: Navigating Hacking Threats and Fortifying Data Protection in the Digital Age///Navigating the Digital Gauntlet: The Evolving Nexus of Hacking and Data Protection///The Unrelenting Cyber Battle: Hacking Threats and the Imperative of Robust Data Protection///Navigating the Cyber Labyrinth: Bolstering Defenses Against Evolving Hacking Threats///The Dual Front War: Battling Hacking and Bolstering Data Protection in the Digital Age///The Ever-Evolving Cyber Threat Landscape: Navigating Hacking and Fortifying Data Protection///The Unseen Battle: Fortifying Data in an Age of Relentless Hacking///The Unseen War: Hacking's Relentless Advance and the Imperative of Data Protection///The Evolving Threat Landscape: Hacking, Data Protection, and the Imperative for Proactive Security///Navigating the Digital Minefield: Bolstering Data Protection in an Era of Relentless Hacking///The Dual Fronts of Digital Defense: Combating Hacking and Fortifying Data Protection///Hacking's New Frontier: Fortifying Data Protection in the Age of Advanced Cyber Threats///The Dual Front: Navigating Hacking Threats and Fortifying Data Protection in the Digital Age///Navigating the Digital Gauntlet: The Evolving Nexus of Hacking and Data Protection///
Subscribe
Cyber Security
Independent · Digital
Thehackingpost
RSSSubscribe
CybersecurityAI-assisted

Critical OpenSSL Vulnerabilities Allow Remote Attackers to Execute Malicious Code

On Tue, Jan 27, 2026, OpenSSL released patches addressing 12 vulnerabilities, including a high-severity flaw with potential for remote code execution. Most issues primarily cause denial-of-service attacks, emphasizing the importance of careful data…

EBy Eleanor TateJan 28, 20262 min read

On Tue, Jan 27, 2026, OpenSSL released patches addressing 12 vulnerabilities, including a high-severity flaw with potential for remote code execution. Most issues primarily cause denial-of-service attacks, emphasizing the importance of careful data parsing.

The critical vulnerability, identified as CVE-2025-15467, affects the CMS AuthEnvelopedData parsing when using AEAD ciphers such as AES-GCM. It allows attackers to create oversized IVs in ASN.1 parameters, leading to stack overflows before authentication checks. This can cause crashes or remote code execution in applications processing untrusted CMS or PKCS#7 data, including S/MIME.

Applications that parse remote CMS content are at high risk, as no key is required to exploit the overflow. The severity depends on platform defenses like ASLR, with OpenSSL rating this as a high-severity issue.

CVE-2025-11187 affects PBMAC1 validation in PKCS#12 files, causing stack overflows or null dereferences in versions 3.6 to 3.4. This occurs during key derivation if the key length exceeds 64 bytes. Low-severity issues such as CVE-2025-69419, CVE-2025-69421, and CVE-2026-22795 affect PKCS#12 handling, leading to out-of-bounds writes or null dereferences.

The vulnerabilities impact versions from OpenSSL 3.6 to 1.0.2, excluding older branches without features like PBMAC1 or QUIC. FIPS modules are unaffected since the problematic code is outside their boundaries.

CVE ID Severity Brief Impact Affected Versions Patched Versions

CVE-2025-11187 Moderate Stack overflow in PKCS#12 MAC 3.6, 3.5, 3.4 3.6.1, 3.5.5, 3.4.4

CVE-2025-15467 High Stack overflow in CMS parsing 3.6-3.0 3.6.1, 3.5.5, 3.4.4, 3.3.6, 3.0.19

On Tue, Jan 27, 2026, OpenSSL released patches addressing 12 vulnerabilities, including a high-severity flaw with potential for remote code execution.
Eleanor Tate · Thehackingpost

CVE-2025-15468 Low Null deref in QUIC cipher lookup 3.6, 3.5, 3.4, 3.3 3.6.1, 3.5.5, 3.4.4, 3.3.6

CVE-2025-15469 Low Dgst tool truncates large inputs 3.6, 3.5 3.6.1, 3.5.5

CVE-2025-66199 Low TLS 1.3 cert compression DoS 3.6, 3.5, 3.4, 3.3 3.6.1, 3.5.5, 3.4.4, 3.3.6

CVE-2025-68160 Low Heap OOB write in BIO linebuffer 3.6-3.0, 1.1.1, 1.0.2 3.6.1-3.0.19, 1.1.1ze, 1.0.2zn

CVE-2025-69418 Low OCB tail bytes unencrypted 3.6-3.0, 1.1.1 3.6.1-3.0.19, 1.1.1ze

CVE-2025-69419 Low OOB write in PKCS12 friendlyname 3.6-3.0, 1.1.1 3.6.1-3.0.19, 1.1.1ze

Advertisement

CVE-2025-69420 Low Null deref in timestamp verify 3.6-3.0, 1.1.1 3.6.1-3.0.19, 1.1.1ze

CVE-2025-69421 Low Null deref in PKCS12 decrypt 3.6-3.0, 1.1.1, 1.0.2 3.6.1-3.0.19, 1.1.1ze, 1.0.2zn

CVE-2026-22795 Low Type confusion in PKCS#12 3.6-3.0, 1.1.1 3.6.1-3.0.19, 1.1.1ze

CVE-2026-22796 Low Type confusion in PKCS7 digest 3.6-3.0, 1.1.1, 1.0.2 3.6.1-3.0.19, 1.1.1ze, 1.0.2zn

Immediate upgrade to versions 3.6.1, 3.5.5, or higher is recommended. Avoid processing untrusted PKCS#12/CMS inputs and validate file sizes. For TLS 1.3 compression, set SSL_OP_NO_RX_CERTIFICATE_COMPRESSION . Servers parsing S/MIME or timestamps should prioritize patching due to the risk of remote exploitation.

OpenSSL is widely used in web servers, VPNs, and cryptographic tools. Prompt updates are essential to prevent potential denial-of-service or other severe impacts in production environments. It is advisable to check dependencies via package managers.

Based on reporting by Cyber Security News.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
Related Stories
Cybersecurity

Why Fintech Banking Platforms Are Reducing Operational Costs by 40%

Paige Monroe · Mar 26, 2026
Cybersecurity

Dogecoin Price Prediction: SHIB Burns 172M Tokens as Pepeto Exchange Earns From Every Trade

Eric Wallace · Mar 26, 2026
Cybersecurity

Solana Price Prediction: SOL Holds $86 With Commodity Status as Pepeto Targets Bigger Returns

Zachary Burns · Mar 26, 2026
Cybersecurity

Open Directory Malware Campaign Uses Obfuscated VBS, PNG Loaders and RAT Payloads

Joseph Cain · Mar 26, 2026