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CVE-2001-0499· NVD / CVE Program· CNA mitre

Buffer overflow in Transparent Network Substrate (TNS) Listener in Oracle 8i 8.1.7 and earlier allows remote attackers to gain privileges vi

Buffer overflow in Transparent Network Substrate (TNS) Listener in Oracle 8i 8.1.7 and earlier allows remote attackers to gain privileges via a long argument to the commands (1) STATUS, (2) PING, (3) SERVICES, (4) TRC_FILE, (5) SAVE_CONFIG, or (6) RELOAD.

CriticalCVSS 10.0 · v2.0—Weaponized No fix recorded
Published
Jul 21, 2001
Updated
Jun 16, 2026
EPSS
85.2% · 100th percentile
CWE
—
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Action score

66

This week

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CVSS
40 / 40 · 10.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
26 / 30 · 85.2%

Affected systems

VendorProduct
oracleoracle8i

Affected versions

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

  • oracle oracle8iup to 8.1.7 inclusive

Same product

oracle: all records

Other highest-scoring records for the same primary product.

  • CVE-2004-0638Buffer overflow in the KSDWRTB function in the dbms_system package (dbms_system.ksdwrt) for Oracle 9i Database Server Release 2 9.2.0.3 and
    36Monitor
  • CVE-2003-0634Stack-based buffer overflow in the PL/SQL EXTPROC functionality for Oracle9i Database Release 2 and 1, and Oracle 8i, allows authenticated d
    32Monitor
  • CVE-2004-0637Oracle Database Server 8.1.7.4 through 9.2.0.4 allows local users to execute commands with additional privileges via the ctxsys.driload pack
    31Monitor
  • CVE-2002-0858catsnmp in Oracle 9i and 8i is installed with a dbsnmp user with a default dbsnmp password, which allows attackers to perform restricted dat
    31Monitor
  • CVE-2001-0126Oracle XSQL servlet 1.0.3.0 and earlier allows remote attackers to execute arbitrary Java code by redirecting the XSQL server to another sou
    31Monitor
  • CVE-2000-0206The installation of Oracle 8.1.5.x on Linux follows symlinks and creates the orainstRoot.sh file with world-writeable permissions, which all
    24Monitor

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

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×2

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 entryremote2010-11-24
Exploit-DB entryremote2001-07-20
Metasploit moduleexploit/windows/oracle/tns_argumentsOracle 8i TNS Listener (ARGUMENTS) Buffer Overflowexploit2001-06-28

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. Metasploit-23 d
  2. First PoC-1 d
  3. Published
  4. TodaySep 30, 2026+9203 d
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

  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

—

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

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

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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