A NULL pointer dereference in WLAvalancheService.exe of Ivanti Avalanche before version 6.4.5 allows a remote unauthenticated attacker to ca
A NULL pointer dereference in WLAvalancheService.exe of Ivanti Avalanche before version 6.4.5 allows a remote unauthenticated attacker to cause a denial of service.
- Published
- Oct 8, 2024
- Updated
- Jun 17, 2026
- EPSS
- 1.7% · 77th percentile
- CWE
- CWE-476
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.7%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · ivanti
- 7.5
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| ivanti | avalanche | cpe:2.3:a:ivanti:avalanche |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ivanti avalanchebefore 6.4.5
Versions reported by the vendor
Affected version ranges reported by the assigning authority (ivanti). Independent of NVD's CPE analysis and usually ahead of it.
Ivanti Avalanche
- 6.4.5not affected
Same product
ivanti: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-32560An attacker can send a specially crafted message to the Wavelink Avalanche Manager, which could result in service disruption or arbitrary co69This week
- CVE-2023-46264An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.4.1 and below that could allow an attacker t66This week
- CVE-2023-32563An unauthenticated attacker could achieve the code execution through a RemoteControl server.66This week
- CVE-2023-46263An unrestricted upload of file with dangerous type vulnerability exists in Avalanche versions 6.4.1 and below that could allow an attacker t64This week
- CVE-2022-36981This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.3.101.64This week
- CVE-2022-36974This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ivanti Avalanche 6.3.2.3490.64This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
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.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
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.
- CVE-2024-3739956 days apartA NULL pointer dereference in WLAvalancheService in Ivanti Avalanche 6.3.1 allows a remote unauthenticated attacker to crash the service, re38Monitor
- CVE-2024-5031735 days apartA null pointer dereference in Ivanti Avalanche before 6.4.6 allows a remote unauthenticated attacker to cause a denial of service.30Monitor
- CVE-2024-5031835 days apartA null pointer dereference in Ivanti Avalanche before 6.4.6 allows a remote unauthenticated attacker to cause a denial of service.30Monitor
- CVE-2024-24991173 days apartA Null Pointer Dereference vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3 allows an authenticated remote att27Monitor
- CVE-2024-27978173 days apartA Null Pointer Dereference vulnerability in WLAvalancheService component of Ivanti Avalanche before 6.4.3 allows an authenticated remote att27Monitor
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-24-1635 · Oct 9, 2024(Ivanti Çoklu Ürün Güvenlik Bildirimi)
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.