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CVE-2015-8676· NVD / CVE Program· CNA mitre

Memory leak in Huawei S5300EI, S5300SI, S5310HI, S6300EI/ S2350EI, and S5300LI Campus series switches with software V200R001C00 before V200R

Memory leak in Huawei S5300EI, S5300SI, S5310HI, S6300EI/ S2350EI, and S5300LI Campus series switches with software V200R001C00 before V200R001SPH018, V200R002C00 before V200R003SPH011, and V200R003C00 before V200R003SPH011; S9300, S7700, and S9700 Campus series switches with software V200R001C00 before V200R001SPH023, V200R002C00 before V200R003SPH011, and V200R003C00 before V200R003SPH011; and S2300 and S3300 Campus series switches with software V100R006C05 before V100R006SPH022 allows remote attackers to cause a denial of service (memory consumption and reboot) via a large number of ICMPv6 packets.

HighCVSS 7.5 · v3.0—No exploit No fix recorded
Published
Apr 14, 2016
Updated
Jun 16, 2026
EPSS
1.3% · 70th 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 · 1.3%

Affected systems

VendorProduct
huaweis2350ei firmware
huaweis2350ei
huaweis5300ei firmware
huaweis5300ei
huaweis5300si firmware
huaweis5300si
huaweis5310hi firmware
huaweis5310hi
huaweis6300ei firmware
huaweis6300ei
huaweis5300li firmware
huaweis5300li

and 10 more

Affected versions

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

  • huawei s2300 firmwarev100r006c05 and later · before v100r006sph022
  • huawei s2350ei firmwarev200r002c00 and later · before v200r003sph011
  • huawei s2350ei firmwarev200r001c00 and later · before v200r001sph018
  • huawei s3300 firmwarev100r006c05 and later · before v100r006sph022
  • huawei s5300ei firmwarev200r001c00 and later · before v200r001sph018
  • huawei s5300ei firmwarev200r002c00 and later · before v200r003sph011
  • huawei s5300li firmwarev200r002c00 and later · before v200r003sph011
  • huawei s5300li firmwarev200r001c00 and later · before v200r001sph018
  • huawei s5300si firmwarev200r001c00 and later · before v200r001sph018
  • huawei s5300si firmwarev200r002c00 and later · before v200r003sph011
  • huawei s5310hi firmwarev200r001c00 and later · before v200r001sph018
  • huawei s5310hi firmwarev200r002c00 and later · before v200r003sph011
  • huawei s6300ei firmwarev200r002c00 and later · before v200r003sph011
  • huawei s6300ei firmwarev200r001c00 and later · before v200r001sph018
  • huawei s7700 firmwarev200r001c00 and later · before v200r001sph023
  • huawei s7700 firmwarev200r002c00 and later · before v200r003c00
  • huawei s7700 firmwarev200r003c00
  • huawei s9300 firmwarev200r002c00 and later · before v200r003c00
  • huawei s9300 firmwarev200r001c00 and later · before v200r001sph023
  • huawei s9300 firmwarev200r003c00

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

Weakness class (CWE)

CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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.

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 help

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