diff --git a/src/main/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStream.java b/src/main/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStream.java
index ff44f9757a2..16b9fe103a8 100644
--- a/src/main/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStream.java
+++ b/src/main/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStream.java
@@ -494,7 +494,7 @@ private CpioArchiveEntry readOldAsciiEntry() throws IOException {
         ret.setRemoteDevice(readAsciiLong(6, 8));
         ret.setTime(readAsciiLong(11, 8));
         final long nameSize = readAsciiLong(6, 8);
-        if (nameSize < 0) {
+        if (nameSize <= 0) {
             throw new ArchiveException("Found illegal entry with negative name length");
         }
         ret.setSize(readAsciiLong(11, 8));
@@ -524,7 +524,7 @@ private CpioArchiveEntry readOldBinaryEntry(final boolean swapHalfWord) throws I
         oldEntry.setRemoteDevice(readBinaryLong(2, swapHalfWord));
         oldEntry.setTime(readBinaryLong(4, swapHalfWord));
         final long nameSize = readBinaryLong(2, swapHalfWord);
-        if (nameSize < 0) {
+        if (nameSize <= 0) {
             throw new ArchiveException("Found illegal entry with negative name length");
         }
         oldEntry.setSize(readBinaryLong(4, swapHalfWord));
diff --git a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
index 95cb4e1c656..829fa4501bc 100644
--- a/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/cpio/CpioArchiveInputStreamTest.java
@@ -120,6 +120,34 @@ void testEndOfFileInEntry_c_namesize_0x00000000() throws Exception {
         }
     }
 
+    @Test
+    void testEndOfFileInEntry_c_namesize_0x00000000_magicOldAscii() throws Exception {
+        // CPIO header with c_namesize = 0x00000000
+        // @formatter:off
+        final String header =
+                "070707" + // c_magic
+                "000000" + // dev
+                "000000" + // c_ino
+                "007004" + // c_mode
+                "000000" + // c_uid
+                "000000" + // c_gid
+                "00000001" + // c_nlink
+                "00000000" + // c_mtime
+                "00000000" + // c_filesize
+                "00000000" + // c_devmajor
+                "00000000" + // c_devminor
+                "00000000" + // c_rdevmajor
+                "00000000" + // c_rdevminor
+                "00000000" + // c_namesize
+                "00000000"; // c_check
+        // @formatter:on
+        final byte[] data = new byte[header.getBytes(StandardCharsets.US_ASCII).length + 1];
+        System.arraycopy(header.getBytes(), 0, data, 0, header.getBytes().length);
+        try (CpioArchiveInputStream cpio = CpioArchiveInputStream.builder().setByteArray(data).get()) {
+            assertThrows(ArchiveException.class, () -> cpio.getNextEntry());
+        }
+    }
+
     @Test
     void testEndOfFileInEntry_c_namesize_0xFFFFFFFF() throws Exception {
         // CPIO header with c_namesize = 0xFFFFFFFF