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NVD / CVE Program· CNA redhat

CVE-2007-4571: The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8…

LowCVSS 2.1 · v2.0—Proof of concept Fix available

Noroxi assessment

Priority: Monitor (action score 8/100)

  • Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.76% (FIRST EPSS); higher than 55.9% of all records.
  • No special conditions are required; it is repeatable.
  • Fixed version: alsa-driver (Debian:3.1) 1.0.8-7sarge1; alsa-modules-i386 (Debian:3.1) 1.0.8+2sarge2; alsa-driver (Debian:4.0) 1.0.13-5etch1.

Low priority for now. Upgrade to alsa-driver (Debian:3.1) 1.0.8-7sarge1; alsa-modules-i386 (Debian:3.1) 1.0.8+2sarge2; alsa-driver (Debian:4.0) 1.0.13-5etch1 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

The snd_mem_proc_read function in sound/core/memalloc.c in the Advanced Linux Sound Architecture (ALSA) in the Linux kernel before 2.6.22.8 does not return the correct write size, which allows local users to obtain sensitive information (kernel memory contents) via a small count argument, as demonstrated by multiple reads of /proc/driver/snd-page-alloc.

Published
Sep 26, 2007
Updated
Jun 16, 2026
EPSS
0.7% · 55th percentile
CWE
—

Report tools

JSON

Action score

8

Monitor

Low priority for now.

CVSS
8 / 40 · 2.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2007-4571

When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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.

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Affected 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.

VendorProduct
linuxlinux kernel

Affected versions

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

  • linux linux kernelup to 2.6.22.7 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:3.1alsa-driverbefore 1.0.8-7sarge11.0.8-7sarge1
Debian:3.1alsa-modules-i386before 1.0.8+2sarge21.0.8+2sarge2
Debian:4.0alsa-driverbefore 1.0.13-5etch11.0.13-5etch1
Debian:4.0linux-2.6before 2.6.18.dfsg.1-17etch12.6.18.dfsg.1-17etch1
Red Hat:enterprise_linux:4::askernelbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-debuginfobefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-develbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-docbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-hugemembefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-hugemem-develbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-largesmpbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-largesmp-develbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-smpbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-smp-develbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-xenUbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:4::askernel-xenU-develbefore 0:2.6.9-55.0.12.EL0:2.6.9-55.0.12.EL
Red Hat:enterprise_linux:5::clientkernelbefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-debugbefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-debug-debuginfobefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-debug-develbefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfobefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-debuginfo-commonbefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-develbefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5
Red Hat:enterprise_linux:5::clientkernel-docbefore 0:2.6.18-53.1.4.el50:2.6.18-53.1.4.el5

+9

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
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  • 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…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2007-0997Sep 18, 2007 · Race condition in the tee (sys_tee) system call in the Linux kernel 2.6.17 through 2.6.17.6 might allow local users to cause a denial of…
    27Monitor
  • ← EarlierCVE-2007-4573Sep 24, 2007 · The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does…
    28Monitor
  • Later →CVE-2007-5087Sep 26, 2007 · The ATM module in the Linux kernel before 2.4.35.3, when CLIP support is enabled, allows local users to cause a denial of service (kernel…
    19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:alsa-driver1.0.8-7sarge1 · Debian:3.1Package registry (OSV)
debian:alsa-modules-i3861.0.8+2sarge2 · Debian:3.1Package registry (OSV)
debian:linux-2.62.6.18.dfsg.1-17etch1 · Debian:4.0Package registry (OSV)
red hat:kernel0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-debuginfo0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-devel0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-doc0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-hugemem0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-hugemem-devel0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-largesmp0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-largesmp-devel0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-smp0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-smp-devel0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-xenU0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)
red hat:kernel-xenU-devel0:2.6.9-55.0.12.EL · Red Hat:enterprise_linux:4::asPackage registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Exploit-DB entry ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entrylocal2007-09-21

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.

  1. First PoC-5 d
  2. Published
  3. TodayNov 15, 2026+6991 d

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
none
Availability
none
Attack complexity
Low
Confidentiality impact
P
Integrity impact
None
Availability impact
None

Weakness class (CWE)

—

CVSS vector

AV:L/AC:L/Au:N/C:P/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.

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records