CVE-2019-17594

Exp

There is a heap-based buffer over-read in the _nc_find_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.

Published: 2019-10-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-17594 is rated Exploit Available (51.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.55%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2019-17594

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-17594

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 0.03% 0.55% +0.51%
2 2025-11-21 0.11% 0.03% -0.08%
3 2025-11-18 — 0.11% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-17594

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L)
A normal user session is enough; they don’t have to be admin.
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:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.8 3.4 [email protected]
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
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.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2019-17594

OS Trackers for CVE-2019-17594

vendor priority summary link
alpine medium CVE-2019-17594: 1 source package rows (ncurses); 16 state rows across 6 repos (3.11-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 16. https://security.alpinelinux.org/vuln/CVE-2019-17594
debian low CVE-2019-17594 low 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-2019-17594
gentoo normal CVE-2019-17594: 1 GLSA(s) (202101-28), 1 atom(s) (sys-apps/ncurses); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-17594
redhat medium — https://access.redhat.com/security/cve/CVE-2019-17594
suse medium CVE-2019-17594 severity moderate: SUSE including 1027 source package names (0.0.17-1.1:libncurses6-6.1-5.6.2, 0.0.17-1.1:terminfo-base-6.1-5.6.2, …), 2842 product×package rows across 650 product lines (Container bci/bci-base-fips, Container bci/bci-init, … (650 product lines)): Fixed 2616, Known Affected 157, Known Not Affected 69. https://www.suse.com/security/cve/CVE-2019-17594/
ubuntu negligible CVE-2019-17594 negligible priority: Ubuntu including 1 source packages (ncurses), 13 status rows across 13 suites (bionic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, trusty, upstream, xenial): released 11, ignored 2. https://ubuntu.com/security/CVE-2019-17594

Affected software / configurations for CVE-2019-17594

Vendor Product Version Raw CPE
gnu ncurses < 6.2 cpe:2.3:a:gnu:ncurses:*:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*

References for CVE-2019-17594

cvelogic Threat Intelligence