9.8

CVE-2024-21894: ivanti connect_secure Out-of-bounds Write

Modified
Published 04-04-2024Last modified 03-10-2024

Vulnerability summary

CVE-2024-21894 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in ivanti connect_secure. EPSS estimates a 18.99% chance of exploitation in the next 30 days, higher than 97.2% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
18.99%
0%100%
Medium · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 04-04-2024
    PublishedVulnerability first disclosed.
  2. 03-10-2024
    Last modifiedVulnerability information updated.

Description

A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows an unauthenticated malicious user to send specially crafted requests in-order-to crash the service thereby causing a DoS attack. In certain conditions this may lead to execution of arbitrary code

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

18.99%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

No change 0.00 pp

From 18.99% on 22-09-2026

22-09-202622-10-2026

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

Affected systems

Ivanti2 products
  • connect_secure≥ 22.1R6.2, < 22.1R6.2 | ≥ 22.2R4.2, < 22.2R4.2 | ≥ 22.3R1.2, < 22.3R1.2 | ≥ 22.4R1.2, < 22.4R1.2 | ≥ 22.4R2.4, < 22.4R2.4 | ≥ 22.5R1.3, < 22.5R1.3 | ≥ 22.5R2.4, < 22.5R2.4 | ≥ 22.6R2.3, < 22.6R2.3 | ≥ 9.1R14.6, < 9.1R14.6 | ≥ 9.1R15.4, < 9.1R15.4 | ≥ 9.1R16.4, < 9.1R16.4 | ≥ 9.1R17.4, < 9.1R17.4 | ≥ 9.1R18.5, < 9.1R18.5 | 9.1:r1 | 9.1:r1.0 | 9.1:r11 | 9.1:r11.5 | 9.1:r12 | 9.1:r13 | 9.1:r14 | 9.1:r15 | 9.1:r16 | 9.1:r17 | 9.1:r18 | 9.1:r2 | 9.1:r3 | 9.1:r4 | 9.1:r4.1 | 9.1:r4.2 | 9.1:r4.3 | 9.1:r5 | 9.1:r6 | 9.1:r7 | 9.1:r8 | 9.1:r9 | 22.1 | 22.2 | 22.3 | 22.4 | 22.5 | 22.6
  • policy_secure≥ 22.4R1.2, < 22.4R1.2 | ≥ 22.6R1.2, < 22.6R1.2 | ≥ 9.1R16.4, < 9.1R16.4 | ≥ 9.1R17.4, < 9.1R17.4 | ≥ 9.1R18.5, < 9.1R18.5 | 9.0 | 9.0:r1 | 9.0:r2 | 9.0:r2.1 | 9.0:r3 | 9.0:r3.1 | 9.0:r4 | 9.1 | 9.1:r1 | 9.1:r10 | 9.1:r11 | 9.1:r12 | 9.1:r13 | 9.1:r14 | 9.1:r15 | 9.1:r16 | 9.1:r17 | 9.1:r18 | 9.1:r2 | 9.1:r3 | 9.1:r4 | 9.1:r5 | 9.1:r6 | 9.1:r7 | 9.1:r8 | 9.1:r9 | 22.1 | 22.2 | 22.3 | 22.4 | 22.5 | 22.6

1 vendor · 2 products

References

1 links