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CVE-2020-3261· NVD / CVE Program· CNA cisco

Cisco Mobility Express Software Cross-Site Request Forgery Vulnerability

A vulnerability in the web-based management interface of Cisco Mobility Express Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. The vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user with an active session on an affected device to follow a malicious link. A successful exploit could allow the attacker to perform arbitrary actions, including modifying the configuration, with the privilege level of the user.

MediumCVSS 6.5 · v3.1—No exploit No fix recorded
Published
Apr 15, 2020
Updated
Jun 16, 2026
EPSS
0.5% · 41th percentile
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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
6.5
CNA · cisco
8.1
1.6 point gap

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

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.

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Affected systems

VendorProduct
ciscoaironet 1542i firmware
ciscoaironet 1542i
ciscoaironet 1542d firmware
ciscoaironet 1542d
ciscoaironet 1562i firmware
ciscoaironet 1562i
ciscoaironet 1562e firmware
ciscoaironet 1562e
ciscoaironet 1562d firmware
ciscoaironet 1562d
ciscoaironet 1815 firmware
ciscoaironet 1815

and 22 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • cisco 6300 series access points firmware8.0 and later · before 8.8.130.0
  • cisco 6300 series access points firmware8.10(1.255)
  • cisco aironet 1542d firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1542d firmware8.10(1.255)
  • cisco aironet 1542i firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1542i firmware8.10(1.255)
  • cisco aironet 1562d firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1562d firmware8.10(1.255)
  • cisco aironet 1562e firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1562e firmware8.10(1.255)
  • cisco aironet 1562i firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1562i firmware8.10(1.255)
  • cisco aironet 1815 firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1815 firmware8.10(1.255)
  • cisco aironet 1830 firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1830 firmware8.10(1.255)
  • cisco aironet 1840 firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1840 firmware8.10(1.255)
  • cisco aironet 1850 firmware8.0 and later · before 8.8.130.0
  • cisco aironet 1850 firmware8.10(1.255)

Versions reported by the vendor

Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.

  • Cisco Cisco Mobility Express

    • n/aaffected

Same product

cisco: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-3260Cisco Aironet Series Access Points Client Packet Processing Denial of Service Vulnerability
    26Monitor

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.

EPSS, last 120 days

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 researchers

Finders, 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.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-352 · Cross-Site Request Forgery (CSRF)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

nvd-primary

Root cause

State-changing requests rely on the session cookie the browser sends automatically; nothing verifies that the request came from the user’s own page.

The bug in code

The whole CWE-352 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use(session({ cookie: { httpOnly: true } }));app.post("/account/address", updateAddress);

Fixed

ts
app.use(session({ cookie: { httpOnly: true, sameSite: "lax" } }));app.post("/account/address", csrfProtection, updateAddress);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

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.

All records