CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service
Noroxi assessment
Priority: Monitor (action score 22/100)
- 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: 0.21% (FIRST EPSS).
- Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: Linux Linux 01d1ebdab9ccb73c952e1666a8a80abd194dbc55, 088bde862f8d3d0fc52e40e66a0484a246837087, 182a4b7c731e95c08cb47f14b87a272b6ab2b2da; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.76.1-1; azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 6.6.76.1-1.
Low priority for now. Upgrade to Linux Linux 01d1ebdab9ccb73c952e1666a8a80abd194dbc55, 088bde862f8d3d0fc52e40e66a0484a246837087, 182a4b7c731e95c08cb47f14b87a272b6ab2b2da; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.76.1-1; azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 6.6.76.1-1 or later.
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
In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service If there's a persistent error in the hypervisor, the SCSI warning for failed I/O can flood the kernel log and max out CPU utilization, preventing troubleshooting from the VM side. Ratelimit the warning so it doesn't DoS the VM.
- Published
- Feb 10, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 11th percentile
- CWE
- CWE-770
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
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 |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernelbefore 5.15.178
- linux linux kernel5.16 and later · before 6.1.128
- linux linux kernel6.2 and later · before 6.6.75
- linux linux kernel6.7 and later · before 6.12.12
- linux linux kernel6.13
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.5affected
- f8aea701b77c26732f151aab4f0a70e62eb53d86 and later · before 81d4dd05c412ba04f9f6b85b718e6da833be290caffected · git
- f8aea701b77c26732f151aab4f0a70e62eb53d86 and later · before 182a4b7c731e95c08cb47f14b87a272b6ab2b2daaffected · git
- f8aea701b77c26732f151aab4f0a70e62eb53d86 and later · before 088bde862f8d3d0fc52e40e66a0484a246837087affected · git
- f8aea701b77c26732f151aab4f0a70e62eb53d86 and later · before 01d1ebdab9ccb73c952e1666a8a80abd194dbc55affected · git
- f8aea701b77c26732f151aab4f0a70e62eb53d86 and later · before d0f0af1bafef33b3e2aa8c3a4ef44db48df9b0eaaffected · git
- f8aea701b77c26732f151aab4f0a70e62eb53d86 and later · before d2138eab8cde61e0e6f62d0713e45202e8457d6daffected · git
- before 4.5not affected · semver
- 5.15.178 and later · up to and including 5.15.*not affected · semver
- 6.1.128 and later · up to and including 6.1.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.128-1 | 6.1.128-1 |
| Debian:13 | linux | before 6.12.12-1 | 6.12.12-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-64kb | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default-base | before 5.3.18-150300.59.198.1.150300.18.118.1 | 5.3.18-150300.59.198.1.150300.18.118.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-docs | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-obs-build | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-preempt | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-syms | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-64kb | before 5.14.21-150400.24.153.1 | 5.14.21-150400.24.153.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | before 5.14.21-150400.24.153.1 | 5.14.21-150400.24.153.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-obs-build | before 5.14.21-150400.24.153.1 | 5.14.21-150400.24.153.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | before 5.14.21-150400.24.153.1 | 5.14.21-150400.24.153.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-syms | before 5.14.21-150400.24.153.1 | 5.14.21-150400.24.153.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-64kb | before 5.14.21-150500.55.97.1 | 5.14.21-150500.55.97.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-docs | before 5.14.21-150500.55.97.1 | 5.14.21-150500.55.97.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-obs-build | before 5.14.21-150500.55.97.1 | 5.14.21-150500.55.97.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-syms | before 5.14.21-150500.55.97.1 | 5.14.21-150500.55.97.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-default | before 5.3.18-150300.59.198.1 | 5.3.18-150300.59.198.1 |
| SUSE:Linux Enterprise Live Patching 15 SP3 | kernel-livepatch-SLE15-SP3_Update_55 | before 1-150300.7.3.1 | 1-150300.7.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_37 | before 1-150400.9.3.1 | 1-150400.9.3.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_24 | before 1-150500.11.3.1 | 1-150500.11.3.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default | before 5.14.21-150400.24.153.1 | 5.14.21-150400.24.153.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default-base | before 5.14.21-150400.24.153.1.150400.24.76.1 | 5.14.21-150400.24.153.1.150400.24.76.1 |
+10
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2025-21688Feb 10, 2025 · drm/v3d: Assign job pointer to NULL before signaling the fence18Monitor
- ← EarlierCVE-2025-21689Feb 10, 2025 · USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()22Monitor
- Later →CVE-2025-21691Feb 10, 2025 · cachestat: fix page cache statistics permission checking22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 01d1ebdab9ccb73c952e1666a8a80abd194dbc55 | Vendor (CNA) |
| Linux Linux | 088bde862f8d3d0fc52e40e66a0484a246837087 | Vendor (CNA) |
| Linux Linux | 182a4b7c731e95c08cb47f14b87a272b6ab2b2da | Vendor (CNA) |
| Linux Linux | 81d4dd05c412ba04f9f6b85b718e6da833be290c | Vendor (CNA) |
| Linux Linux | d0f0af1bafef33b3e2aa8c3a4ef44db48df9b0ea | Vendor (CNA) |
| Linux Linux | d2138eab8cde61e0e6f62d0713e45202e8457d6d | Vendor (CNA) |
| azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 | 6.6.76.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 | 6.6.76.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.176.3-3 on CBL Mariner 2.0 | 5.15.180.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.176.3-3 on CBL-Mariner 2.0 | 5.15.180.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0 | 5.15.180.1-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.128-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-default | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-default-base | 5.14.21-150500.55.97.1.150500.6.45.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-docs | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP4_Update_37 | 1-150400.9.3.1 · SUSE:Linux Enterprise Live Patching 15 SP4 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP5_Update_24 | 1-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5 | Package registry (OSV) |
| suse:kernel-obs-build | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-rt | 5.14.21-150500.13.88.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-source | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-source-rt | 5.14.21-150500.13.88.1 · SUSE:Linux Enterprise Micro 5.5 | Package registry (OSV) |
| suse:kernel-syms | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.14.21-150500.55.97.1 · SUSE:Linux Enterprise Server 15 SP5-LTSS | Package registry (OSV) |
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.
No history yet (it accumulates with the daily EPSS job).
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.
- CVE-2021-47137322 days apartnet: lantiq: fix memory corruption in RX ring39Monitor
- CVE-2024-35969266 days apartipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr35Monitor
- CVE-2024-34027231 days apartf2fs: compress: fix to cover {reserve,release}_compress_blocks() w/ cp_rwsem lock31Monitor
- CVE-2021-47551262 days apartdrm/amd/amdkfd: Fix kernel panic when reset failed and been triggered again31Monitor
- CVE-2021-47130332 days apartnvmet: fix freeing unallocated p2pmem30Monitor
- CVE-2024-26894299 days apartACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()24Monitor
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
- Someone with local access to the system 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
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-770 · Allocation of Resources Without Limits or ThrottlingCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/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.
Attack patterns (CAPEC)
- FloodingCAPEC-125likelihood: High · Medium
- Excessive AllocationCAPEC-130likelihood: Medium · Medium
- XML Ping of the DeathCAPEC-147likelihood: Low · Medium
- Exponential Data ExpansionCAPEC-197likelihood: High · Medium
- Serialized Data Parameter BlowupCAPEC-229likelihood: High · High
- Serialized Data with Nested PayloadsCAPEC-230likelihood: Medium · High
- Oversized Serialized Data PayloadsCAPEC-231likelihood: Medium · High
- HTTP DoSCAPEC-469Low
ATT&CK techniques
- Network Denial of Service:Direct Network FloodT1498.001
- Network Denial of Service:Reflection AmplificationT1498.002
- Endpoint Denial of ServiceT1499
- Endpoint Denial of Service: OS Exhaustion FloodT1499.001
- Endpoint Denial of Service:Service Exhaustion FloodT1499.002
- Endpoint Denial of Service:Application Exhaustion FloodT1499.003
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (6 more)Show less
- git.kernel.org/stable/c/088bde862f8d3d0fc52e40e66a0484a246837087
- git.kernel.org/stable/c/182a4b7c731e95c08cb47f14b87a272b6ab2b2da
- git.kernel.org/stable/c/81d4dd05c412ba04f9f6b85b718e6da833be290c
- git.kernel.org/stable/c/d0f0af1bafef33b3e2aa8c3a4ef44db48df9b0ea
- git.kernel.org/stable/c/d2138eab8cde61e0e6f62d0713e45202e8457d6d
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.