6.5

CVE-2023-50495: invisible-island ncurse

Modified
AliasesSUSE-SU-2023:4891-1SUSE-SU-2023:4892-1UBUNTU-CVE-2023-50495
Published 12-12-2023Last modified 15-10-2026

Vulnerability summary

CVE-2023-50495 is a medium (CVSS 6.5) vulnerability in invisible-island ncurse. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 63.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.04%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 12-12-2023
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

NCurse v6.4-20230418 was discovered to contain a segmentation fault via the component _nc_wrap_entry().

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.04%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

Increase +0.08 pp

From 0.96% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Suse14 products
  • ncurses&distro=SUSE Linux Enterprise Micro 5.1< 6.1-150000.5.20.1
  • ncurses&distro=SUSE Linux Enterprise Micro 5.2< 6.1-150000.5.20.1
  • ncurses&distro=SUSE Linux Enterprise Micro 5.3< 6.1-150000.5.20.1
  • ncurses&distro=SUSE Linux Enterprise Micro 5.4< 6.1-150000.5.20.1
  • ncurses&distro=SUSE Linux Enterprise Micro 5.5< 6.1-150000.5.20.1
Opensuse4 products
  • ncurses&distro=openSUSE Leap 15.4< 6.1-150000.5.20.1
  • ncurses&distro=openSUSE Leap 15.5< 6.1-150000.5.20.1
  • ncurses&distro=openSUSE Leap Micro 5.3< 6.1-150000.5.20.1
  • ncurses&distro=openSUSE Leap Micro 5.4< 6.1-150000.5.20.1
Debian1 product
  • ncursesAll versions (No fix recorded) | < 6.4+20230625-1
Invisible-island1 product
Ubuntu1 product
  • ncursesAll versions (No fix recorded) | < 5.9+20140118-1ubuntu1+esm5 | < 6.0+20160213-1ubuntu1+esm5 | < 6.1-1ubuntu1.18.04.1+esm2

5 vendors · 21 products

References

16 links
Show all 16 references