7.5

CVE-2021-46828: debian debian_linux

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2021-46828MGASA-2022-0288SUSE-SU-2022:2991-1
Published 20-07-2022Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2021-46828 is a high (CVSS 7.5) vulnerability in debian debian_linux. EPSS estimates a 3.20% chance of exploitation in the next 30 days, higher than 87.9% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
3.20%
0%100%
Low · +0.42 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 20-07-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

3.20%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

+0.42 pp

From 2.78% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Suse32 products
  • libtirpc&distro=SUSE Enterprise Storage 6< 1.0.2-150000.3.18.1
  • libtirpc&distro=SUSE Enterprise Storage 7< 1.0.2-150000.3.18.1
  • libtirpc&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS< 1.0.2-150000.3.18.1
  • libtirpc&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 1.0.2-150000.3.18.1
  • libtirpc&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS< 1.0.2-150000.3.18.1
Redhat4 products
  • libtirpc< 0:1.1.4-6.el8 | < 0:1.3.3-0.el9
  • libtirpc-debuginfo< 0:1.1.4-6.el8 | < 0:1.3.3-0.el9
  • libtirpc-debugsource< 0:1.1.4-6.el8 | < 0:1.3.3-0.el9
  • libtirpc-devel< 0:1.1.4-6.el8 | < 0:1.3.3-0.el9
Opensuse3 products
  • libtirpc&distro=openSUSE Leap 15.3< 1.2.6-150300.3.14.1
  • libtirpc&distro=openSUSE Leap 15.4< 1.2.6-150300.3.14.1
  • libtirpc&distro=openSUSE Leap Micro 5.2< 1.2.6-150300.3.14.1
Debian2 products
  • libtirpc< 1.3.1-1+deb11u1 | < 1.1.4-0.4+deb10u1 | < 1.3.2-2.1
  • debian_linuxEOL10.0 | 11.0
Ubuntu2 products
  • libtirpc< 1.2.5-1ubuntu0.1 | < 1.3.2-2ubuntu0.1
  • ntirpcAll versions (No fix recorded)
Alpine1 product
  • libtirpc< 1.3.1-r1 | < 1.3.2-r1 | < 1.3.2-r2
Libtirpc_project1 product
Mageia1 product
  • libtirpc< 1.3.3-1.mga8

8 vendors · 46 products

References

34 links
Show all 34 references