CVE-2024-39532: Junos OS and Junos OS Evolved: Confidential information in logs can be accessed by another user
Noroxi assessment
Priority: Monitor (action score 25/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.15% (FIRST EPSS).
- Someone with local access to the system can trigger it. Administrator privileges are required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: Juniper Networks Junos OS 21.2R3-S9, 21.4R3-S9, 22.2R2-S1, 22.2R3; Juniper Networks Junos OS Evolved 22.1R3-EVO, 22.2R2-S1-EVO, 22.2R3-EVO, 22.3R1-S1-EVO, 22.3R2-EVO.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to Juniper Networks Junos OS 21.2R3-S9, 21.4R3-S9, 22.2R2-S1, 22.2R3; Juniper Networks Junos OS Evolved 22.1R3-EVO, 22.2R2-S1-EVO, 22.2R3-EVO, 22.3R1-S1-EVO, 22.3R2-EVO or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
An Insertion of Sensitive Information into Log File vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with high privileges to access sensitive information. When another user performs a specific operation, sensitive information is stored as plain text in a specific log file, so that a high-privileged attacker has access to this information. This issue affects: Junos OS: * All versions before 21.2R3-S9; * 21.4 versions before 21.4R3-S9; * 22.2 versions before 22.2R2-S1, 22.2R3; * 22.3 versions before 22.3R1-S1, 22.3R2; Junos OS Evolved: * All versions before before 22.1R3-EVO; * 22.2-EVO versions before 22.2R2-S1-EVO, 22.2R3-EVO; * 22.3-EVO versions before 22.3R1-S1-EVO, 22.3R2-EVO.
- Published
- Jul 11, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.1% · 4th percentile
- CWE
- CWE-532
Report tools
Action score
25
Monitor
Low priority for now.
- CVSS
- 25 / 40 · 6.3 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · juniper
- 6.3
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| juniper | junos | cpe:2.3:o:juniper:junos |
| juniper | junos os evolved | cpe:2.3:o:juniper:junos_os_evolved |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- juniper junosbefore 21.2
- juniper junos21.2
- juniper junos21.4
- juniper junos22.2
- juniper junos22.3
- juniper junos os evolved22.1
- juniper junos os evolved22.2
- juniper junos os evolved22.3
Versions reported by the vendor
Affected version ranges reported by the assigning authority (juniper). Independent of NVD's CPE analysis and usually ahead of it.
Juniper Networks Junos OS
- before 21.2R3-S9affected · semver
- 21.4 and later · before 21.4R3-S9affected · semver
- 22.2 and later · before 22.2R2-S1, 22.2R3affected · semver
- 22.3 and later · before 22.3R1-S1, 22.3R2affected · semver
Juniper Networks Junos OS Evolved
- before 22.1R3-EVOaffected · semver
- 22.2-EVO and later · before 22.2R2-S1-EVO, 22.2R3-EVOaffected · semver
- 22.3-EVO and later · before 22.3R1-S1-EVO, 22.3R2-EVOaffected · semver
Same product
juniper: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-36845Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to control an important environment variableKEV98Now
- CVE-2023-36846Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary filesKEV79This week
- CVE-2023-36844Junos OS: EX Series: A PHP vulnerability in J-Web allows an unauthenticated attacker to control important environment variablesKEV78This week
Published before and after this one in the same product
- ← EarlierCVE-2024-39529Jul 11, 2024 · Junos OS: SRX Series: If DNS traceoptions are configured in a DGA or tunnel detection scenario specific DNS traffic leads to a PFE crash34Monitor
- ← EarlierCVE-2024-39530Jul 11, 2024 · Junos OS: Attempting to access specific sensors on platforms not supporting these will lead to a chassisd crash34Monitor
- Later →CVE-2024-39533Jul 11, 2024 · Junos OS: QFX5000 Series and EX4600 Series: Output firewall filter is not applied if certain match criteria are used27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Juniper Networks Junos OS | 21.2R3-S9 | Vendor (CNA) |
| Juniper Networks Junos OS | 21.4R3-S9 | Vendor (CNA) |
| Juniper Networks Junos OS | 22.2R2-S1, 22.2R3 | Vendor (CNA) |
| Juniper Networks Junos OS | 22.3R1-S1, 22.3R2 | Vendor (CNA) |
| Juniper Networks Junos OS Evolved | 22.1R3-EVO | Vendor (CNA) |
| Juniper Networks Junos OS Evolved | 22.2R2-S1-EVO, 22.2R3-EVO | Vendor (CNA) |
| Juniper Networks Junos OS Evolved | 22.3R1-S1-EVO, 22.3R2-EVO | Vendor (CNA) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
No history yet (it accumulates with the daily EPSS job).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-0943 · Jul 16, 2024(Juniper Junos OS Güvenlik Bildirimi)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- Administrator privileges are required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- none
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- High
- User interaction
- Required
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-532 · Insertion of Sensitive Information into Log FileCVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.