A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access
A SQL-Injection vulnerability in the SonicWall SSLVPN SMA100 product allows a remote unauthenticated attacker to perform SQL query to access username password and other session related information. This vulnerability impacts SMA100 build version 10.x.
- Published
- Feb 4, 2021
- Updated
- Aug 12, 2026
- EPSS
- 40.0% · 99th percentile
- CWE
- CWE-89
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Action score
81
Now
Patch today or shut off access.
- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 12 / 30 · 40.0%
CISA SSVC decision
- Exploitation
- active
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Actively exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on Nov 3, 2021. That signals real attacks, not theory.
Remediation deadline for government agencies: Nov 17, 2021.
Known to be used in ransomware campaigns.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| sonicwall | sma 100 firmware | cpe:2.3:o:sonicwall:sma_100_firmware |
| sonicwall | sma 100 | cpe:2.3:h:sonicwall:sma_100 |
| 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 | cpe:2.3:a:sonicwall:sma_500v |
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Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- sonicwall sma 100 firmware10.0.0.0 and later · before 10.2.0.5-d-29sv
- sonicwall sma 200 firmwareall versions
- sonicwall sma 210 firmwareall versions
- sonicwall sma 400 firmwareall versions
- sonicwall sma 410 firmwareall versions
- sonicwall sma 500vall versions
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 SonicWall SMA100
- SMA100 build version 10.xaffected
Same product
sonicwall: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-7481Vulnerability in SonicWall SMA100 allow unauthenticated user to gain read-only access to unauthorized resources.KEV90Now
- CVE-2019-7483In SonicWall SMA100, an unauthenticated Directory Traversal vulnerability in the handleWAFRedirect CGI allows the user to test for the preseKEV61This week
- CVE-2019-7482Stack-based buffer overflow in SonicWall SMA100 allows an unauthenticated user to execute arbitrary code in function libSys.so.42Plan
- CVE-2025-32819A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges to bypass the path traversal checks and delete 37Monitor
- CVE-2025-32820A vulnerability in SMA100 allows a remote authenticated attacker with SSLVPN user privileges can inject a path traversal sequence to make an36Monitor
- CVE-2019-7486Code injection in SonicWall SMA100 allows an authenticated user to execute arbitrary code in viewcacert CGI script.35Monitor
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
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
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.
- Published
- CISA KEV+272 d
- TodaySep 29, 2026+2064 d
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.
- 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)
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.
The bug in code
The whole CWE-89 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const owner = req.query.owner;const rows = await db.query( "SELECT * FROM files WHERE owner = '" + owner + "'");Fixed
const owner = req.query.owner;const rows = await db.query( "SELECT * FROM files WHERE owner = $1", [owner]);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)
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Expanding Control over the Operating System from the DatabaseCAPEC-470Very High
- SQL InjectionCAPEC-66likelihood: High · High
- Blind SQL InjectionCAPEC-7likelihood: High · High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; 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 helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0001
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-20016
Vendor advisories and official records. Exploit/PoC links are deliberately left out.