ALEOS LAN-Side RPC Service Remote Code Execution
Unauthenticated RPC server on ALEOS before 4.4.9, 4.9.5, and 4.14.0 allows remote code execution.
Noroxi analysis
No Noroxi analysis for this record yet
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We use this product, ask for help- Published
- Oct 6, 2020
- Updated
- Jun 16, 2026
- EPSS
- 1.8% · 78th percentile
- CWE
- —
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Report tools
Action score
40
Plan
Add it to your regular patch cycle.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.8%
CNA vs NVD score
- NVD
- 9.8
- CNA · mitre
- 7.5
- 2.3 point gap
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| sierrawireless | aleos | cpe:2.3:o:sierrawireless:aleos |
| sierrawireless | airlink es440 | cpe:2.3:h:sierrawireless:airlink_es440 |
| sierrawireless | airlink es450 | cpe:2.3:h:sierrawireless:airlink_es450 |
| sierrawireless | airlink gx400 | cpe:2.3:h:sierrawireless:airlink_gx400 |
| sierrawireless | airlink gx440 | cpe:2.3:h:sierrawireless:airlink_gx440 |
| sierrawireless | airlink gx450 | cpe:2.3:h:sierrawireless:airlink_gx450 |
| sierrawireless | airlink ls300 | cpe:2.3:h:sierrawireless:airlink_ls300 |
| sierrawireless | airlink lx40 | cpe:2.3:h:sierrawireless:airlink_lx40 |
| sierrawireless | airlink lx60 | cpe:2.3:h:sierrawireless:airlink_lx60 |
| sierrawireless | airlink mp70 | cpe:2.3:h:sierrawireless:airlink_mp70 |
| sierrawireless | airlink mp70e | cpe:2.3:h:sierrawireless:airlink_mp70e |
| sierrawireless | airlink rv50 | cpe:2.3:h:sierrawireless:airlink_rv50 |
and 2 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- sierrawireless aleosbefore 4.4.9
- sierrawireless aleos4.5.0 and later · before 4.9.5
- sierrawireless aleos4.10.0 and later · before 4.14.0
Same product
sierrawireless: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-4063An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3.KEV73This week
- CVE-2015-2897Sierra Wireless ALEOS before 4.4.2 on AirLink ES, GX, and LS devices has hardcoded root accounts, which makes it easier for remote attackers41Plan
- CVE-2018-10251A vulnerability in Sierra Wireless AirLink GX400, GX440, ES440, and LS300 routers with firmware before 4.4.7 and GX450, ES450, RV50, RV50X, 40Plan
- CVE-2019-11851The ACENet service in Sierra Wireless ALEOS before 4.4.9, 4.5.x through 4.9.x before 4.9.5, and 4.10.x through 4.13.x before 4.14.0 allows r39Monitor
- CVE-2019-11855ALEOS LAN-Side RPC Server39Monitor
- CVE-2022-46649Acemanager in ALEOS before version 4.16 allows a user with valid credentials to manipulate the IP logging operation to execute arbitrary she36Monitor
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.
- Ruben Santamarta, Principal Security ConsultantIOActive for the responsible disclosure of these vulnerabilities.
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).
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
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.