CVE-2024-21591 Details
An Out-of-bounds Write vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS), or Remote Code Execution (RCE) and obtain root privileges on the device.

This issue is caused by use of an insecure function allowing an attacker to overwrite arbitrary memory.

This issue affects Juniper Networks Junos OS SRX Series and EX Series:



* Junos OS versions earlier than 20.4R3-S9;
* Junos OS 21.2 versions earlier than 21.2R3-S7;
* Junos OS 21.3 versions earlier than 21.3R3-S5;
* Junos OS 21.4 versions earlier than 21.4R3-S5;
* Junos OS 22.1 versions earlier than 22.1R3-S4;
* Junos OS 22.2 versions earlier than 22.2R3-S3;
* Junos OS 22.3 versions earlier than 22.3R3-S2;
* Junos OS 22.4 versions earlier than 22.4R2-S2, 22.4R3.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2024-21591
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
23.48 Probability of exploitation activity being observed over the next 30 days (96th percentile)
CVSS score for CVE-2024-21591
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
9.8 Critical
Products affected by CVE-2024-21591
Junos 12.1x44
Junos 12.1x45
Junos 12.1x46
Junos 12.1x47
Junos 12.3x48
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
More on DVE scores

CVE-2024-21591 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
NA 25 25.51%
PK 9 9.18%
CA 6 6.12%
TW 6 6.12%
BD 5 5.10%
CN 4 4.08%
VN 4 4.08%
VE 4 4.08%
KR 4 4.08%
ZM 3 3.06%

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CVE-2024-21591 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 59 90.77%
Technology 3 4.62%
Manufacturing 1 1.54%
Business Services 1 1.54%
Consumer Goods 1 1.54%

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