CVE-2026-31623
MediumCVSS 5.5Summary
W jądrze systemu Linux zidentyfikowano podatność, która została naprawiona. Złośliwe urządzenie USB udające modem CDC Phonet może spowodować przepełnienie tablicy skb_shared_info->frags[] poprzez wysyłanie nieograniczonej sekwencji pełno-stronowych transferów.
Risk Assessment
Atakujący może wykorzystać tę podatność do destabilizacji systemu, co może prowadzić do utraty danych lub nieautoryzowanego dostępu do zasobów systemowych.
Recommendation
Zaleca się aktualizację jądra systemu Linux do najnowszej wersji, aby załatać tę podatność oraz monitorowanie podłączonych urządzeń USB w celu wykrycia potencjalnych zagrożeń.
Related vulnerabilities
- CVE-2026-81797Critical
The WordPress theme Buzz Stone | Magazine & Viral Blog in versions up to 1.0.2 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-78535Critical
The WordPress theme Photolia in versions up to 1.0.3 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-78533Critical
The WordPress theme Qwery in versions up to 3.6.1 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-78531Critical
The WordPress theme Jacqueline in versions up to 2.22 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-78529Critical
The WordPress theme Alliance in versions up to 3.11 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-66569Critical
The WordPress theme Kicker in versions up to 2.2.1 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-66568Critical
The WordPress theme Original in versions up to 1.9.0 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-66567Critical
The WordPress theme Anesta in versions up to 1.5.3 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-66565Critical
The WordPress theme FC United in versions up to 1.1.1 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
- CVE-2026-66564Critical
The WordPress theme ShiftCV in versions up to 3.0.14 contains a PHP Object Injection vulnerability. An unauthenticated attacker can inject a malicious PHP object, potentially leading to arbitrary code execution or other severe impacts.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() A malicious USB device claiming to be a CDC Phonet modem can overflow the skb_shared_info->frags[] array by sending an unbounded sequence of full-page bulk transfers. Drop the skb and increment the length error when the frag limit is reached. This matches the same fix that commit f0813bcd2d9d ("net: wwan: t7xx: fix potential skb->frags overflow in RX path") did for the t7xx driver.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

