CVE-2020-19187: invisible-island ncurses Out-of-bounds Write
Vulnerability summary
CVE-2020-19187 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in invisible-island ncurses. EPSS estimates a 1.94% chance of exploitation in the next 30 days, higher than 80.1% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 22-08-2023PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
Buffer Overflow vulnerability in fmt_entry function in progs/dump_entry.c:1100 in ncurses 6.1 allows remote attackers to cause a denial of service via crafted command.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.94%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
Increase +0.19 pp
From 1.75% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundFuzzpoc
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- ncurses< 6.1+20191019-1
Invisible-island1 product
- ncurses6.1
Netapp1 product
Ubuntu1 product
- ncurses< 5.9+20140118-1ubuntu1+esm3 | < 6.0+20160213-1ubuntu1+esm3 | < 6.2-0ubuntu2.1 | < 6.3-2ubuntu0.1
4 vendors · 4 products
References
12 links- security.netapp.com/advisory/ntap-20231006-0005/Third Party Advisory
- seclists.org/fulldisclosure/2023/Dec/9Mailing List
- seclists.org/fulldisclosure/2023/Dec/10Mailing List
- seclists.org/fulldisclosure/2023/Dec/11Mailing List
