PR
Product
proxygen
by Facebook · last CVE Sep 28, 2026
On CISA KEVExploited in the wild
11
CVEs
1
On KEV
9.8
Max CVSS
3
New 30D
Severity mix
Critical 3High 6Medium 2Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2020-1897
9.8
1%
May 18
A use-after-free is possible due to an error in lifetime management in the request adaptor when a malicious client invokes request error handling in a specific sequence
Affected: before 2020.05.18.00
CVE-2019-11940
9.8
1%
Dec 4
In the course of decompressing HPACK inside the HTTP2 protocol, an unexpected sequence of header table resize operations can place the header table into a corrupted state, leading…
Affected: 0.29.0 through 2017.04.03.00
CVE-2019-11921
9.8
2%
Jul 25
An out of bounds write is possible via a specially crafted packet in certain configurations of Proxygen due to improper handling of Base64 when parsing malformed binary content in…
Affected: before 2019.07.22.00
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