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CVE-2009-0873· NVD / CVE Program· CNA mitre

The NFS daemon (aka nfsd) in Sun Solaris 10 and OpenSolaris before snv_106, when NFSv3 is used, does not properly implement combinations of

The NFS daemon (aka nfsd) in Sun Solaris 10 and OpenSolaris before snv_106, when NFSv3 is used, does not properly implement combinations of security modes, which allows remote attackers to bypass intended access restrictions and read or modify files, as demonstrated by a combination of the sec=sys and sec=krb5 security modes, related to modes that "override each other."

MediumCVSS 6.8 · v2.0—No exploit No fix recorded
Published
Mar 11, 2009
Updated
Jun 16, 2026
EPSS
2.0% · 80th percentile
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Action score

28

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.0%

Affected systems

VendorProduct
sunopensolaris
sunsunos
sunsolaris

Affected versions

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

  • sun opensolarissnv_01
  • sun opensolarissnv_02
  • sun opensolarissnv_03
  • sun opensolarissnv_04
  • sun opensolarissnv_05
  • sun opensolarissnv_06
  • sun opensolarissnv_07
  • sun opensolarissnv_08
  • sun opensolarissnv_09
  • sun opensolarissnv_10
  • sun opensolarissnv_20
  • sun opensolarissnv_21
  • sun opensolarissnv_22
  • sun opensolarissnv_23
  • sun opensolarissnv_24
  • sun opensolarissnv_25
  • sun opensolarissnv_26
  • sun opensolarissnv_27
  • sun opensolarissnv_28
  • sun opensolarissnv_29

Same product

sun: all records

Other highest-scoring records for the same primary product.

  • CVE-2009-2296The NFSv4 server kernel module in Sun Solaris 10, and OpenSolaris before snv_119, does not properly implement the nfs_portmon setting, which
    41Plan
  • CVE-2008-5010in.dhcpd in the DHCP implementation in Sun Solaris 8 through 10, and OpenSolaris before snv_103, allows remote attackers to cause a denial o
    41Plan
  • CVE-2008-0964Multiple stack-based buffer overflows in snoop on Sun Solaris 8 through 10 and OpenSolaris before snv_96, when the -o option is omitted, all
    41Plan
  • CVE-2008-0965Multiple format string vulnerabilities in snoop on Sun Solaris 8 through 10 and OpenSolaris before snv_96, when the -o option is omitted, al
    39Monitor
  • CVE-2008-7300The labeled networking implementation in Solaris Trusted Extensions in Sun Solaris 10 and OpenSolaris snv_39 through snv_67, when a labeled
    34Monitor
  • CVE-2009-0304The kernel in Sun Solaris 10 and 11 snv_101b, and OpenSolaris before snv_108, allows remote attackers to cause a denial of service (system c
    34Monitor

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

    If successful

    Confidentiality
    P · data can be read
    Integrity
    P · data or configuration can be modified
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    P
    Availability impact
    P

    Weakness class (CWE)

    CWE-264 · Permissions, Privileges, and Access Controls

    CVSS vector

    AV:N/AC:M/Au:N/C:P/I:P/A:P

    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.

    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