CVE-2017-10684

In ncurses 6.0, there is a stack-based buffer overflow in the fmt_entry function. A crafted input will lead to a remote arbitrary code execution attack.

Published: 2017-06-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-10684 is rated High Risk (73.7/100): CVSS Critical severity, with high exploitation likelihood (EPSS 4.88%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.65% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

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-2017-10684

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 2026-06-15 2.22% 4.88% +2.65%
2 2026-05-08 3.35% 2.22% -1.12%
3 2026-03-28 — 3.35% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-10684

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2017-10684

OS Trackers for CVE-2017-10684

vendor priority summary link
alpine — CVE-2017-10684: 1 source package rows (ncurses); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. https://security.alpinelinux.org/vuln/CVE-2017-10684
debian not yet assigned CVE-2017-10684 not yet assigned priority: Debian including 1 source packages (ncurses), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-10684
gentoo normal CVE-2017-10684: 1 GLSA(s) (201804-13), 1 atom(s) (sys-libs/ncurses); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-10684
redhat medium — https://access.redhat.com/security/cve/CVE-2017-10684
suse medium CVE-2017-10684 severity moderate: SUSE including 76 source package names (0.9.1:libncurses5-5.9-50.1, 0.9.1:libncurses6-5.9-50.1, …), 322 product×package rows across 60 product lines (Container caasp/v4/default-http-backend, Container caasp/v4/dnsmasq-nanny, … (60 product lines)): Fixed 322. https://www.suse.com/security/cve/CVE-2017-10684/
ubuntu negligible CVE-2017-10684 negligible priority: Ubuntu including 1 source packages (ncurses), 15 status rows across 15 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial, yakkety, zesty): not-affected 9, ignored 3, released 3. https://ubuntu.com/security/CVE-2017-10684

Affected software / configurations for CVE-2017-10684

Vendor Product Version Raw CPE
gnu ncurses 6.0 cpe:2.3:a:gnu:ncurses:6.0:*:*:*:*:*:*:*

References for CVE-2017-10684

cvelogic Threat Intelligence