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CVE-2015-9550· NVD / CVE Program· CNA mitre

An issue was discovered on TOTOLINK A850R-V1 through 1.0.1-B20150707.1612 and F1-V2 through 1.1-B20150708.1646 devices.

An issue was discovered on TOTOLINK A850R-V1 through 1.0.1-B20150707.1612 and F1-V2 through 1.1-B20150708.1646 devices. By sending a specific hel,xasf packet to the WAN interface, it is possible to open the web management interface on the WAN interface.

HighCVSS 7.5 · v3.1—No exploit No fix recorded

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Published
Nov 24, 2020
Updated
Jun 16, 2026
EPSS
1.6% · 74th percentile
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Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.6%

Affected systems

VendorProduct
totolinka850r-v1 firmware
totolinka850r-v1
totolinkf1-v2 firmware
totolinkf1-v2
totolinkf2-v1 firmware
totolinkf2-v1
totolinkn150rt-v2 firmware
totolinkn150rt-v2
totolinkn151rt-v2 firmware
totolinkn151rt-v2
totolinkn300rh-v2 firmware
totolinkn300rh-v2

and 4 more

Affected versions

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

  • totolink a850r-v1 firmwarebefore 1.0.1-b20150707.1612
  • totolink f1-v2 firmwarebefore 2.1.1-b20150708.1646
  • totolink f2-v1 firmwarebefore 2.1.0-b20150320.1611
  • totolink n150rt-v2 firmwarebefore 2.1.1-b20150708.1548
  • totolink n151rt-v2 firmwarebefore 1.1-b20150708.1559
  • totolink n300rh-v2 firmwarebefore 2.0.1-b20150708.1625
  • totolink n300rh-v3 firmwarebefore 3.0.0-b20150331.0858
  • totolink n300rt-v2 firmwarebefore 2.1.1-b20150708.1613

Same product

totolink: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-9551An issue was discovered on TOTOLINK A850R-V1 through 1.0.1-B20150707.1612 and F1-V2 through 1.1-B20150708.1646 devices.
    40Plan

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.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

CWE-668 · Exposure of Resource to Wrong Sphere

CVSS vector

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

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.

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