https://patchthecve.com/CVEs with upgrade or downgrade fix stepshttps://patchthecve.com/cve/CVE-2021-26958.htmlhttps://patchthecve.com/cve/CVE-2021-26958.htmlWed, 17 Jun 2026 03:44:04 +0000HIGH 8.8: An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because transmutation to the wrong type can happen after xcb::base::cast_event uses std::mem::transmute to return a reference to an arbitrary type.https://patchthecve.com/cve/CVE-2021-26957.htmlhttps://patchthecve.com/cve/CVE-2021-26957.htmlWed, 17 Jun 2026 03:44:04 +0000CRITICAL 9.8: An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because there is an out-of-bounds read in xcb::xproto::change_property(), as demonstrated by a format=32 T=u8 situation where out-of-bounds bytes are sent to an X server.https://patchthecve.com/cve/CVE-2021-26956.htmlhttps://patchthecve.com/cve/CVE-2021-26956.htmlWed, 17 Jun 2026 03:44:04 +0000CRITICAL 9.8: An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because bytes from an X server can be interpreted as any data type returned by xcb::xproto::GetPropertyReply::value.https://patchthecve.com/cve/CVE-2021-26955.htmlhttps://patchthecve.com/cve/CVE-2021-26955.htmlWed, 17 Jun 2026 03:44:04 +0000CRITICAL 9.8: An issue was discovered in the xcb crate through 2021-02-04 for Rust. It has a soundness violation because xcb::xproto::GetAtomNameReply::name() calls std::str::from_utf8_unchecked() on unvalidated bytes from an X server.https://patchthecve.com/cve/CVE-2020-36205.htmlhttps://patchthecve.com/cve/CVE-2020-36205.htmlWed, 17 Jun 2026 03:15:00 +0000MEDIUM 5.5: An issue was discovered in the xcb crate through 2020-12-10 for Rust. base::Error does not have soundness. Because of the public ptr field, a use-after-free or double-free can occur.