A Heap-based Buffer Overflow vulnerability in the SonicWall SMA100 appliance allows a remote authenticated attacker to cause Denial of Servi
Noroxi assessment
Priority: Monitor (action score 37/100)
- 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: 6.8% (FIRST EPSS); higher than 94% of all records.
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
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
A Heap-based Buffer Overflow vulnerability in the SonicWall SMA100 appliance allows a remote authenticated attacker to cause Denial of Service (DoS) on the appliance or potentially lead to code execution. This vulnerability impacts 10.2.1.5-34sv and earlier versions.
- Published
- Aug 26, 2022
- Updated
- Jun 17, 2026
- EPSS
- 6.8% · 94th percentile
- CWE
- CWE-122
Report tools
Action score
37
Monitor
Low priority for now.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 2 / 30 · 6.8%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
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 |
|---|---|---|
| sonicwall | sma 200 firmware | cpe:2.3:o:sonicwall:sma_200_firmware |
| sonicwall | sma 200 | cpe:2.3:h:sonicwall:sma_200 |
| sonicwall | sma 210 firmware | cpe:2.3:o:sonicwall:sma_210_firmware |
| sonicwall | sma 210 | cpe:2.3:h:sonicwall:sma_210 |
| sonicwall | sma 400 firmware | cpe:2.3:o:sonicwall:sma_400_firmware |
| sonicwall | sma 400 | cpe:2.3:h:sonicwall:sma_400 |
| sonicwall | sma 410 firmware | cpe:2.3:o:sonicwall:sma_410_firmware |
| sonicwall | sma 410 | cpe:2.3:h:sonicwall:sma_410 |
| sonicwall | sma 500v firmware | cpe:2.3:o:sonicwall:sma_500v_firmware |
| sonicwall | sma 500v | cpe:2.3:h:sonicwall:sma_500v |
Using sma 200 firmware? Add it to your stack and be the first to know about CVEs like this one. (VPN gateway)
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- sonicwall sma 200 firmwareup to 10.2.1.5-34sv inclusive
- sonicwall sma 210 firmwareup to 10.2.1.5-34sv inclusive
- sonicwall sma 400 firmwareup to 10.2.1.5-34sv inclusive
- sonicwall sma 410 firmwareup to 10.2.1.5-34sv inclusive
- sonicwall sma 500v firmwareup to 10.2.1.5-34sv inclusive
Versions reported by the vendor
Affected version ranges reported by the assigning authority (sonicwall). Independent of NVD's CPE analysis and usually ahead of it.
SonicWall SMA100
- 10.2.1.5-34sv and earlieraffected
Same product
sonicwall: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-20038A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server's mod_cgi module environment variables allows a remote unauthenticKEV99Now
- CVE-2023-44221Improper neutralization of special elements in the SMA100 SSL-VPN management interface allows a remote authenticated attacker with administrKEV81Now
- CVE-2021-20034An improper access control vulnerability in SMA100 allows a remote unauthenticated attacker to bypass the path traversal checks and delete a61This week
Published before and after this one in the same product
- ← EarlierCVE-2021-20045Dec 8, 2021 · A buffer overflow vulnerability in SMA100 sonicfiles RAC_COPY_TO (RacNumber 36) method allows a remote unauthenticated attacker to potential47Plan
- ← EarlierCVE-2022-22273Mar 16, 2022 · Improper neutralization of Special Elements leading to OS Command Injection vulnerability impacting end-of-life Secure Remote Access (SRA) p40Plan
- Later →CVE-2023-5970Dec 5, 2023 · Improper authentication in the SMA100 SSL-VPN virtual office portal allows a remote authenticated attacker to create an identical external d35Monitor
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.
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.
- A low-privileged account is enough.
- 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-122 · Heap-based Buffer OverflowCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/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.
Attack patterns (CAPEC)
ATT&CK techniques
—
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.