CVE-2017-1000211

Lynx before 2.8.9dev.16 is vulnerable to a use after free in the HTML parser resulting in memory disclosure, because HTML_put_string() can append a chunk onto itself.

Published: 2017-11-17 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-1000211 is rated Low Risk (36.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.21%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-1000211

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-09 0.43% 0.21% -0.22%
2 2025-03-30 1.46% 0.43% -1.03%
3 2025-03-29 — 1.46% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-1000211

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 1.4 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-1000211

OS Trackers for CVE-2017-1000211

vendor priority summary link
debian not yet assigned CVE-2017-1000211 not yet assigned priority: Debian including 1 source packages (lynx), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-1000211
redhat low — https://access.redhat.com/security/cve/CVE-2017-1000211
ubuntu medium CVE-2017-1000211 medium priority: Ubuntu including 1 source packages (lynx), 14 status rows across 14 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial, zesty): not-affected 10, DNE 1, ignored 1, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2017-1000211

Affected software / configurations for CVE-2017-1000211

Vendor Product Version Raw CPE
lynx_project lynx 2.8.9 cpe:2.3:a:lynx_project:lynx:2.8.9:dev15:*:*:*:*:*:*

References for CVE-2017-1000211

cvelogic Threat Intelligence