InfoSecBulletin Cybersecurity for mankind
F5 releases security advisory for multiple vulnerabilities including K000132893: GRUB2 vulnerability CVE-2022-28733. This flaw allows an attacker to craft a malicious packet, triggering an integer underflow in grub code.
Consequently, the memory allocation for handling the packet data may be smaller than the size needed. This issue causes an out-of-bands write during packet handling, compromising data integrity, confidentiality issues, a denial of service, and remote code execution.
Atlassian patched 176 flaw in Jira and Confluence: Fortinet Urges to Patch Flaws Affecting FortiOS, FortiManager
Hacker claim to access Rajasthan Police data: 70,000 records allegedly exposed
Update now! PHP2Shell: Critical PHP vulnerabilities patched
Trump says data centres should pay dividends to local community
Hackers Actively Exploiting Palo Alto VPN Flaw Via CVE-2026-0257
DeepSeek AI banned by U.S. Government; federal agencies must remove all related tools
CISA, NSA and NIST Publish New 10 AI Agent Control Guidelines
Claude AI Cracks 25-Year NSA Cryptography Number Mystery in Just 30 Minutes
Bypassing firewalls, AI Agents Accessed Indian ‘ Data Without Permission: CERT-In
MITRE ATT&CK v20 Unveils 9 New Attack Techniques On AI Exploits, MFA Bypass, and CAPTCHA Evasion
Security Advisory Status
F5 Product Development has assigned ID 1209209 (BIG-IP), ID 1209209-7 (BIG-IQ), and ID 1207749-1 (F5OS) to this vulnerability.
To determine if your product and version have been evaluated for this vulnerability, refer to the Evaluated products box. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases, point releases, or hotfixes that address the vulnerability, refer to the following tables. You can also use iHealth to diagnose a vulnerability for BIG-IP and BIG-IQ systems. For more information about using iHealth, refer to K27404821: Using F5 iHealth to diagnose vulnerabilities. For more information about security advisory versioning, refer to K51812227: Understanding security advisory versioning.
In this section:
BIG-IP and BIG-IQ
F5OS
NGINX
Other products
If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by installing a version listed in the Fixes introduced in column. If the Fixes introduced in column does not list a version for your branch, then no update candidate currently exists for that branch and F5 recommends that you upgrade to a version with the fix (refer to the tables).
If the Fixes introduced in column lists a version prior to the one you are running, in the same branch, then your version should have the fix.
Mitigation:
To mitigate this vulnerability for affected F5 products, you should restrict management access to F5 products to only trusted users and devices over a secure network.
