PoC Index85,101 CVEs with PoCs

CVE-2021-22898

LOW 3.1EPSS 4.5%

curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.

Affected
https://github.com/curl/curl
CVSS v3.1 NVD
3.1 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS v2.0 NVD
2.6 LOWAV:N/AC:H/Au:N/C:P/I:N/A:N
EPSS
4.51% chance of exploitation in the next 30 days, 91st percentile
Published
2021-06-11
Updated
2026-10-14

Proof-of-concept exploits (1)

Security advisories

References