CVE-2023-28771
Act now ● On CISA KEV — actively exploited
Actively exploited — on the CISA KEV list.
CVSS base
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EPSS — probability of exploitation (30 days)
99.3%
99.9th percentile
CISA KEV
Listed
Added 2023-05-31 · patch by 2023-06-21
Weakness / dates
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Published — · modified —
Timeline
- 2023-05-31 — Added to CISA KEV (actively exploited)
- 2023-06-21 — CISA patch-by deadline
Description
Zyxel ATP, USG FLEX, VPN, and ZyWALL/USG firewalls allow for improper error message handling which could allow an unauthenticated attacker to execute OS commands remotely by sending crafted packets to an affected device.